Home / 15,036.10-20,758.14-11,257.90

Finding the Fourth Proportional to 15,036.10, 20,758.14 and 11,257.90

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Solution

The fourth proportional to 15,036.10, 20,758.14 and 11,257.90 is: 15,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,036.10 : 20,758.14 = 11,257.90 : x
  2. Step 2: Convert to fraction form
    15,036.10/20,758.14 = 11,257.90/x
  3. Step 3: Cross multiply
    15,036.10x = 20,758.14 × 11,257.90
  4. Step 4: Simplify right side
    15,036.10x = 233,693,064.31
  5. Step 5: Solve for x
    x = 233,693,064.31/15,036.10
  6. Step 6: Final answer
    x = 15,542.13

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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.