Home / 15,496.80-21,385.82-8,423.24

Finding the Fourth Proportional to 15,496.80, 21,385.82 and 8,423.24

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Solution

The fourth proportional to 15,496.80, 21,385.82 and 8,423.24 is: 11,624.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,496.80 : 21,385.82 = 8,423.24 : x
  2. Step 2: Convert to fraction form
    15,496.80/21,385.82 = 8,423.24/x
  3. Step 3: Cross multiply
    15,496.80x = 21,385.82 × 8,423.24
  4. Step 4: Simplify right side
    15,496.80x = 180,137,787.53
  5. Step 5: Solve for x
    x = 180,137,787.53/15,496.80
  6. Step 6: Final answer
    x = 11,624.20

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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.