Home / 9,354.38-14,031.28-2,780.54

Finding the Fourth Proportional to 9,354.38, 14,031.28 and 2,780.54

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Solution

The fourth proportional to 9,354.38, 14,031.28 and 2,780.54 is: 4,170.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,354.38 : 14,031.28 = 2,780.54 : x
  2. Step 2: Convert to fraction form
    9,354.38/14,031.28 = 2,780.54/x
  3. Step 3: Cross multiply
    9,354.38x = 14,031.28 × 2,780.54
  4. Step 4: Simplify right side
    9,354.38x = 39,014,535.29
  5. Step 5: Solve for x
    x = 39,014,535.29/9,354.38
  6. Step 6: Final answer
    x = 4,170.72

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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.