Home / 16,515.40-22,801.62-11,815.24

Finding the Fourth Proportional to 16,515.40, 22,801.62 and 11,815.24

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Solution

The fourth proportional to 16,515.40, 22,801.62 and 11,815.24 is: 16,312.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,515.40 : 22,801.62 = 11,815.24 : x
  2. Step 2: Convert to fraction form
    16,515.40/22,801.62 = 11,815.24/x
  3. Step 3: Cross multiply
    16,515.40x = 22,801.62 × 11,815.24
  4. Step 4: Simplify right side
    16,515.40x = 269,406,612.69
  5. Step 5: Solve for x
    x = 269,406,612.69/16,515.40
  6. Step 6: Final answer
    x = 16,312.45

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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.