Home / 15,397.44-21,248.43-8,323.86

Finding the Fourth Proportional to 15,397.44, 21,248.43 and 8,323.86

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Solution

The fourth proportional to 15,397.44, 21,248.43 and 8,323.86 is: 11,486.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,397.44 : 21,248.43 = 8,323.86 : x
  2. Step 2: Convert to fraction form
    15,397.44/21,248.43 = 8,323.86/x
  3. Step 3: Cross multiply
    15,397.44x = 21,248.43 × 8,323.86
  4. Step 4: Simplify right side
    15,397.44x = 176,869,005.01
  5. Step 5: Solve for x
    x = 176,869,005.01/15,397.44
  6. Step 6: Final answer
    x = 11,486.91

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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.