Home / 18,966.49-28,440.64-8,962.91

Finding the Fourth Proportional to 18,966.49, 28,440.64 and 8,962.91

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Solution

The fourth proportional to 18,966.49, 28,440.64 and 8,962.91 is: 13,440.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.49 : 28,440.64 = 8,962.91 : x
  2. Step 2: Convert to fraction form
    18,966.49/28,440.64 = 8,962.91/x
  3. Step 3: Cross multiply
    18,966.49x = 28,440.64 × 8,962.91
  4. Step 4: Simplify right side
    18,966.49x = 254,910,851.85
  5. Step 5: Solve for x
    x = 254,910,851.85/18,966.49
  6. Step 6: Final answer
    x = 13,440.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.