Home / 15,419.53-21,279.12-9,046.23

Finding the Fourth Proportional to 15,419.53, 21,279.12 and 9,046.23

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Solution

The fourth proportional to 15,419.53, 21,279.12 and 9,046.23 is: 12,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419.53 : 21,279.12 = 9,046.23 : x
  2. Step 2: Convert to fraction form
    15,419.53/21,279.12 = 9,046.23/x
  3. Step 3: Cross multiply
    15,419.53x = 21,279.12 × 9,046.23
  4. Step 4: Simplify right side
    15,419.53x = 192,495,810.73
  5. Step 5: Solve for x
    x = 192,495,810.73/15,419.53
  6. Step 6: Final answer
    x = 12,483.90

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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.