Home / 15,470.13-21,354.32-9,182.50

Finding the Fourth Proportional to 15,470.13, 21,354.32 and 9,182.50

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Solution

The fourth proportional to 15,470.13, 21,354.32 and 9,182.50 is: 12,675.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.13 : 21,354.32 = 9,182.50 : x
  2. Step 2: Convert to fraction form
    15,470.13/21,354.32 = 9,182.50/x
  3. Step 3: Cross multiply
    15,470.13x = 21,354.32 × 9,182.50
  4. Step 4: Simplify right side
    15,470.13x = 196,085,997.49
  5. Step 5: Solve for x
    x = 196,085,997.49/15,470.13
  6. Step 6: Final answer
    x = 12,675.14

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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.