Home / 8,545.34-12,820.28-3,615.18

Finding the Fourth Proportional to 8,545.34, 12,820.28 and 3,615.18

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Solution

The fourth proportional to 8,545.34, 12,820.28 and 3,615.18 is: 5,423.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,545.34 : 12,820.28 = 3,615.18 : x
  2. Step 2: Convert to fraction form
    8,545.34/12,820.28 = 3,615.18/x
  3. Step 3: Cross multiply
    8,545.34x = 12,820.28 × 3,615.18
  4. Step 4: Simplify right side
    8,545.34x = 46,347,601.77
  5. Step 5: Solve for x
    x = 46,347,601.77/8,545.34
  6. Step 6: Final answer
    x = 5,423.73

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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.