Home / 10,367.38-14,320.76-9,038.78

Finding the Fourth Proportional to 10,367.38, 14,320.76 and 9,038.78

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Solution

The fourth proportional to 10,367.38, 14,320.76 and 9,038.78 is: 12,485.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,367.38 : 14,320.76 = 9,038.78 : x
  2. Step 2: Convert to fraction form
    10,367.38/14,320.76 = 9,038.78/x
  3. Step 3: Cross multiply
    10,367.38x = 14,320.76 × 9,038.78
  4. Step 4: Simplify right side
    10,367.38x = 129,442,199.07
  5. Step 5: Solve for x
    x = 129,442,199.07/10,367.38
  6. Step 6: Final answer
    x = 12,485.53

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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.