Home / 15,397.02-21,247.79-8,323.43

Finding the Fourth Proportional to 15,397.02, 21,247.79 and 8,323.43

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Solution

The fourth proportional to 15,397.02, 21,247.79 and 8,323.43 is: 11,486.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,397.02 : 21,247.79 = 8,323.43 : x
  2. Step 2: Convert to fraction form
    15,397.02/21,247.79 = 8,323.43/x
  3. Step 3: Cross multiply
    15,397.02x = 21,247.79 × 8,323.43
  4. Step 4: Simplify right side
    15,397.02x = 176,854,344.86
  5. Step 5: Solve for x
    x = 176,854,344.86/15,397.02
  6. Step 6: Final answer
    x = 11,486.27

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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.