Home / 16,685.20-23,035.16-12,459.56

Finding the Fourth Proportional to 16,685.20, 23,035.16 and 12,459.56

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Solution

The fourth proportional to 16,685.20, 23,035.16 and 12,459.56 is: 17,201.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,685.20 : 23,035.16 = 12,459.56 : x
  2. Step 2: Convert to fraction form
    16,685.20/23,035.16 = 12,459.56/x
  3. Step 3: Cross multiply
    16,685.20x = 23,035.16 × 12,459.56
  4. Step 4: Simplify right side
    16,685.20x = 287,007,958.13
  5. Step 5: Solve for x
    x = 287,007,958.13/16,685.20
  6. Step 6: Final answer
    x = 17,201.35

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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.