Home / 8,948.46-12,350-5,411.69

Finding the Fourth Proportional to 8,948.46, 12,350 and 5,411.69

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Solution

The fourth proportional to 8,948.46, 12,350 and 5,411.69 is: 7,468.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.46 : 12,350 = 5,411.69 : x
  2. Step 2: Convert to fraction form
    8,948.46/12,350 = 5,411.69/x
  3. Step 3: Cross multiply
    8,948.46x = 12,350 × 5,411.69
  4. Step 4: Simplify right side
    8,948.46x = 66,834,371.50
  5. Step 5: Solve for x
    x = 66,834,371.50/8,948.46
  6. Step 6: Final answer
    x = 7,468.81

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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.