Home / 8,487.09-12,724.47-5,706.86

Finding the Fourth Proportional to 8,487.09, 12,724.47 and 5,706.86

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Solution

The fourth proportional to 8,487.09, 12,724.47 and 5,706.86 is: 8,556.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.09 : 12,724.47 = 5,706.86 : x
  2. Step 2: Convert to fraction form
    8,487.09/12,724.47 = 5,706.86/x
  3. Step 3: Cross multiply
    8,487.09x = 12,724.47 × 5,706.86
  4. Step 4: Simplify right side
    8,487.09x = 72,616,705.24
  5. Step 5: Solve for x
    x = 72,616,705.24/8,487.09
  6. Step 6: Final answer
    x = 8,556.14

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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.