Home / 12,776.30-19,164.53-4,456.28

Finding the Fourth Proportional to 12,776.30, 19,164.53 and 4,456.28

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Solution

The fourth proportional to 12,776.30, 19,164.53 and 4,456.28 is: 6,684.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776.30 : 19,164.53 = 4,456.28 : x
  2. Step 2: Convert to fraction form
    12,776.30/19,164.53 = 4,456.28/x
  3. Step 3: Cross multiply
    12,776.30x = 19,164.53 × 4,456.28
  4. Step 4: Simplify right side
    12,776.30x = 85,402,393.64
  5. Step 5: Solve for x
    x = 85,402,393.64/12,776.30
  6. Step 6: Final answer
    x = 6,684.44

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.