Home / 15,553.02-21,463.10-8,479.44

Finding the Fourth Proportional to 15,553.02, 21,463.10 and 8,479.44

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Solution

The fourth proportional to 15,553.02, 21,463.10 and 8,479.44 is: 11,701.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.02 : 21,463.10 = 8,479.44 : x
  2. Step 2: Convert to fraction form
    15,553.02/21,463.10 = 8,479.44/x
  3. Step 3: Cross multiply
    15,553.02x = 21,463.10 × 8,479.44
  4. Step 4: Simplify right side
    15,553.02x = 181,995,068.66
  5. Step 5: Solve for x
    x = 181,995,068.66/15,553.02
  6. Step 6: Final answer
    x = 11,701.59

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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.