Home / 15,999.30-22,078.35-8,925.66

Finding the Fourth Proportional to 15,999.30, 22,078.35 and 8,925.66

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Solution

The fourth proportional to 15,999.30, 22,078.35 and 8,925.66 is: 12,317.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.30 : 22,078.35 = 8,925.66 : x
  2. Step 2: Convert to fraction form
    15,999.30/22,078.35 = 8,925.66/x
  3. Step 3: Cross multiply
    15,999.30x = 22,078.35 × 8,925.66
  4. Step 4: Simplify right side
    15,999.30x = 197,063,845.46
  5. Step 5: Solve for x
    x = 197,063,845.46/15,999.30
  6. Step 6: Final answer
    x = 12,317.03

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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.