Home / 16,905.83-23,349.18-11,518.92

Finding the Fourth Proportional to 16,905.83, 23,349.18 and 11,518.92

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Solution

The fourth proportional to 16,905.83, 23,349.18 and 11,518.92 is: 15,909.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.83 : 23,349.18 = 11,518.92 : x
  2. Step 2: Convert to fraction form
    16,905.83/23,349.18 = 11,518.92/x
  3. Step 3: Cross multiply
    16,905.83x = 23,349.18 × 11,518.92
  4. Step 4: Simplify right side
    16,905.83x = 268,957,336.49
  5. Step 5: Solve for x
    x = 268,957,336.49/16,905.83
  6. Step 6: Final answer
    x = 15,909.15

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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.