Home / 18,424.12-25,421.70-12,750.04

Finding the Fourth Proportional to 18,424.12, 25,421.70 and 12,750.04

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Solution

The fourth proportional to 18,424.12, 25,421.70 and 12,750.04 is: 17,592.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,424.12 : 25,421.70 = 12,750.04 : x
  2. Step 2: Convert to fraction form
    18,424.12/25,421.70 = 12,750.04/x
  3. Step 3: Cross multiply
    18,424.12x = 25,421.70 × 12,750.04
  4. Step 4: Simplify right side
    18,424.12x = 324,127,691.87
  5. Step 5: Solve for x
    x = 324,127,691.87/18,424.12
  6. Step 6: Final answer
    x = 17,592.57

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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.