Home / 8,487.23-12,725.90-5,679.27

Finding the Fourth Proportional to 8,487.23, 12,725.90 and 5,679.27

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Solution

The fourth proportional to 8,487.23, 12,725.90 and 5,679.27 is: 8,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.23 : 12,725.90 = 5,679.27 : x
  2. Step 2: Convert to fraction form
    8,487.23/12,725.90 = 5,679.27/x
  3. Step 3: Cross multiply
    8,487.23x = 12,725.90 × 5,679.27
  4. Step 4: Simplify right side
    8,487.23x = 72,273,823.08
  5. Step 5: Solve for x
    x = 72,273,823.08/8,487.23
  6. Step 6: Final answer
    x = 8,515.60

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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.