Home / 16,686.40-23,025.96-9,131.04

Finding the Fourth Proportional to 16,686.40, 23,025.96 and 9,131.04

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Solution

The fourth proportional to 16,686.40, 23,025.96 and 9,131.04 is: 12,600.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,686.40 : 23,025.96 = 9,131.04 : x
  2. Step 2: Convert to fraction form
    16,686.40/23,025.96 = 9,131.04/x
  3. Step 3: Cross multiply
    16,686.40x = 23,025.96 × 9,131.04
  4. Step 4: Simplify right side
    16,686.40x = 210,250,961.80
  5. Step 5: Solve for x
    x = 210,250,961.80/16,686.40
  6. Step 6: Final answer
    x = 12,600.14

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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.