Home / 16,691.76-23,010.09-12,705.93

Finding the Fourth Proportional to 16,691.76, 23,010.09 and 12,705.93

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Solution

The fourth proportional to 16,691.76, 23,010.09 and 12,705.93 is: 17,515.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,691.76 : 23,010.09 = 12,705.93 : x
  2. Step 2: Convert to fraction form
    16,691.76/23,010.09 = 12,705.93/x
  3. Step 3: Cross multiply
    16,691.76x = 23,010.09 × 12,705.93
  4. Step 4: Simplify right side
    16,691.76x = 292,364,592.83
  5. Step 5: Solve for x
    x = 292,364,592.83/16,691.76
  6. Step 6: Final answer
    x = 17,515.50

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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.