Home / 18,591.90-25,639.68-12,632.46

Finding the Fourth Proportional to 18,591.90, 25,639.68 and 12,632.46

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Solution

The fourth proportional to 18,591.90, 25,639.68 and 12,632.46 is: 17,421.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.90 : 25,639.68 = 12,632.46 : x
  2. Step 2: Convert to fraction form
    18,591.90/25,639.68 = 12,632.46/x
  3. Step 3: Cross multiply
    18,591.90x = 25,639.68 × 12,632.46
  4. Step 4: Simplify right side
    18,591.90x = 323,892,232.01
  5. Step 5: Solve for x
    x = 323,892,232.01/18,591.90
  6. Step 6: Final answer
    x = 17,421.15

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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.