Home / 15,478.17-21,367.32-11,011.29

Finding the Fourth Proportional to 15,478.17, 21,367.32 and 11,011.29

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Solution

The fourth proportional to 15,478.17, 21,367.32 and 11,011.29 is: 15,200.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,478.17 : 21,367.32 = 11,011.29 : x
  2. Step 2: Convert to fraction form
    15,478.17/21,367.32 = 11,011.29/x
  3. Step 3: Cross multiply
    15,478.17x = 21,367.32 × 11,011.29
  4. Step 4: Simplify right side
    15,478.17x = 235,281,757.04
  5. Step 5: Solve for x
    x = 235,281,757.04/15,478.17
  6. Step 6: Final answer
    x = 15,200.88

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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.