Home / 10,360.41-15,545.22-5,428.90

Finding the Fourth Proportional to 10,360.41, 15,545.22 and 5,428.90

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Solution

The fourth proportional to 10,360.41, 15,545.22 and 5,428.90 is: 8,145.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,360.41 : 15,545.22 = 5,428.90 : x
  2. Step 2: Convert to fraction form
    10,360.41/15,545.22 = 5,428.90/x
  3. Step 3: Cross multiply
    10,360.41x = 15,545.22 × 5,428.90
  4. Step 4: Simplify right side
    10,360.41x = 84,393,444.86
  5. Step 5: Solve for x
    x = 84,393,444.86/10,360.41
  6. Step 6: Final answer
    x = 8,145.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.