Home / 14,086.51-19,439.40-7,798.75

Finding the Fourth Proportional to 14,086.51, 19,439.40 and 7,798.75

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Solution

The fourth proportional to 14,086.51, 19,439.40 and 7,798.75 is: 10,762.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,086.51 : 19,439.40 = 7,798.75 : x
  2. Step 2: Convert to fraction form
    14,086.51/19,439.40 = 7,798.75/x
  3. Step 3: Cross multiply
    14,086.51x = 19,439.40 × 7,798.75
  4. Step 4: Simplify right side
    14,086.51x = 151,603,020.75
  5. Step 5: Solve for x
    x = 151,603,020.75/14,086.51
  6. Step 6: Final answer
    x = 10,762.28

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Half scale
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Double scale
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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.