Home / 14,715.48-20,311.74-8,432.04

Finding the Fourth Proportional to 14,715.48, 20,311.74 and 8,432.04

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Solution

The fourth proportional to 14,715.48, 20,311.74 and 8,432.04 is: 11,638.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,715.48 : 20,311.74 = 8,432.04 : x
  2. Step 2: Convert to fraction form
    14,715.48/20,311.74 = 8,432.04/x
  3. Step 3: Cross multiply
    14,715.48x = 20,311.74 × 8,432.04
  4. Step 4: Simplify right side
    14,715.48x = 171,269,404.15
  5. Step 5: Solve for x
    x = 171,269,404.15/14,715.48
  6. Step 6: Final answer
    x = 11,638.72

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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.