Home / 8,432.28-12,647.34-2,588.40

Finding the Fourth Proportional to 8,432.28, 12,647.34 and 2,588.40

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Solution

The fourth proportional to 8,432.28, 12,647.34 and 2,588.40 is: 3,882.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,432.28 : 12,647.34 = 2,588.40 : x
  2. Step 2: Convert to fraction form
    8,432.28/12,647.34 = 2,588.40/x
  3. Step 3: Cross multiply
    8,432.28x = 12,647.34 × 2,588.40
  4. Step 4: Simplify right side
    8,432.28x = 32,736,361.91
  5. Step 5: Solve for x
    x = 32,736,361.91/8,432.28
  6. Step 6: Final answer
    x = 3,882.27

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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.