Home / 9,354.30-12,909.50-5,376

Finding the Fourth Proportional to 9,354.30, 12,909.50 and 5,376

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Solution

The fourth proportional to 9,354.30, 12,909.50 and 5,376 is: 7,419.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,354.30 : 12,909.50 = 5,376 : x
  2. Step 2: Convert to fraction form
    9,354.30/12,909.50 = 5,376/x
  3. Step 3: Cross multiply
    9,354.30x = 12,909.50 × 5,376
  4. Step 4: Simplify right side
    9,354.30x = 69,401,472
  5. Step 5: Solve for x
    x = 69,401,472/9,354.30
  6. Step 6: Final answer
    x = 7,419.21

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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.