Home / 8,545.70-12,820.26-3,615.32

Finding the Fourth Proportional to 8,545.70, 12,820.26 and 3,615.32

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Solution

The fourth proportional to 8,545.70, 12,820.26 and 3,615.32 is: 5,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,545.70 : 12,820.26 = 3,615.32 : x
  2. Step 2: Convert to fraction form
    8,545.70/12,820.26 = 3,615.32/x
  3. Step 3: Cross multiply
    8,545.70x = 12,820.26 × 3,615.32
  4. Step 4: Simplify right side
    8,545.70x = 46,349,342.38
  5. Step 5: Solve for x
    x = 46,349,342.38/8,545.70
  6. Step 6: Final answer
    x = 5,423.70

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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.