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Finding the Fourth Proportional to 8,626.79, 12,934.96 and 5,627.07

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Solution

The fourth proportional to 8,626.79, 12,934.96 and 5,627.07 is: 8,437.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.79 : 12,934.96 = 5,627.07 : x
  2. Step 2: Convert to fraction form
    8,626.79/12,934.96 = 5,627.07/x
  3. Step 3: Cross multiply
    8,626.79x = 12,934.96 × 5,627.07
  4. Step 4: Simplify right side
    8,626.79x = 72,785,987.24
  5. Step 5: Solve for x
    x = 72,785,987.24/8,626.79
  6. Step 6: Final answer
    x = 8,437.20

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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.