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Finding the Fourth Proportional to 10,899.48, 15,045.85 and 7,367.48

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Solution

The fourth proportional to 10,899.48, 15,045.85 and 7,367.48 is: 10,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,899.48 : 15,045.85 = 7,367.48 : x
  2. Step 2: Convert to fraction form
    10,899.48/15,045.85 = 7,367.48/x
  3. Step 3: Cross multiply
    10,899.48x = 15,045.85 × 7,367.48
  4. Step 4: Simplify right side
    10,899.48x = 110,849,923.73
  5. Step 5: Solve for x
    x = 110,849,923.73/10,899.48
  6. Step 6: Final answer
    x = 10,170.20

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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.