Home / 15,488.46-21,380.49-10,117.58

Finding the Fourth Proportional to 15,488.46, 21,380.49 and 10,117.58

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Solution

The fourth proportional to 15,488.46, 21,380.49 and 10,117.58 is: 13,966.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,488.46 : 21,380.49 = 10,117.58 : x
  2. Step 2: Convert to fraction form
    15,488.46/21,380.49 = 10,117.58/x
  3. Step 3: Cross multiply
    15,488.46x = 21,380.49 × 10,117.58
  4. Step 4: Simplify right side
    15,488.46x = 216,318,711.11
  5. Step 5: Solve for x
    x = 216,318,711.11/15,488.46
  6. Step 6: Final answer
    x = 13,966.44

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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.