Home / 14,108.64-19,425.58-11,979.69

Finding the Fourth Proportional to 14,108.64, 19,425.58 and 11,979.69

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Solution

The fourth proportional to 14,108.64, 19,425.58 and 11,979.69 is: 16,494.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.64 : 19,425.58 = 11,979.69 : x
  2. Step 2: Convert to fraction form
    14,108.64/19,425.58 = 11,979.69/x
  3. Step 3: Cross multiply
    14,108.64x = 19,425.58 × 11,979.69
  4. Step 4: Simplify right side
    14,108.64x = 232,712,426.47
  5. Step 5: Solve for x
    x = 232,712,426.47/14,108.64
  6. Step 6: Final answer
    x = 16,494.32

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Half scale
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Double scale
Find fourth proportional to 14,109.64, 19,426.96 and 11,980.69
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.