Home / 15,454.98-21,332.90-9,081.47

Finding the Fourth Proportional to 15,454.98, 21,332.90 and 9,081.47

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Solution

The fourth proportional to 15,454.98, 21,332.90 and 9,081.47 is: 12,535.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.98 : 21,332.90 = 9,081.47 : x
  2. Step 2: Convert to fraction form
    15,454.98/21,332.90 = 9,081.47/x
  3. Step 3: Cross multiply
    15,454.98x = 21,332.90 × 9,081.47
  4. Step 4: Simplify right side
    15,454.98x = 193,734,167.40
  5. Step 5: Solve for x
    x = 193,734,167.40/15,454.98
  6. Step 6: Final answer
    x = 12,535.39

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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.