Home / 12,553.02-17,323.30-6,887.78

Finding the Fourth Proportional to 12,553.02, 17,323.30 and 6,887.78

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Solution

The fourth proportional to 12,553.02, 17,323.30 and 6,887.78 is: 9,505.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.02 : 17,323.30 = 6,887.78 : x
  2. Step 2: Convert to fraction form
    12,553.02/17,323.30 = 6,887.78/x
  3. Step 3: Cross multiply
    12,553.02x = 17,323.30 × 6,887.78
  4. Step 4: Simplify right side
    12,553.02x = 119,319,079.27
  5. Step 5: Solve for x
    x = 119,319,079.27/12,553.02
  6. Step 6: Final answer
    x = 9,505.21

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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.