Home / 8,472.40-12,707.16-2,314.96

Finding the Fourth Proportional to 8,472.40, 12,707.16 and 2,314.96

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Solution

The fourth proportional to 8,472.40, 12,707.16 and 2,314.96 is: 3,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.40 : 12,707.16 = 2,314.96 : x
  2. Step 2: Convert to fraction form
    8,472.40/12,707.16 = 2,314.96/x
  3. Step 3: Cross multiply
    8,472.40x = 12,707.16 × 2,314.96
  4. Step 4: Simplify right side
    8,472.40x = 29,416,567.11
  5. Step 5: Solve for x
    x = 29,416,567.11/8,472.40
  6. Step 6: Final answer
    x = 3,472.05

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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.