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Finding the Fourth Proportional to 10,222.80, 15,301.80 and 7,306.80

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Solution

The fourth proportional to 10,222.80, 15,301.80 and 7,306.80 is: 10,937.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,222.80 : 15,301.80 = 7,306.80 : x
  2. Step 2: Convert to fraction form
    10,222.80/15,301.80 = 7,306.80/x
  3. Step 3: Cross multiply
    10,222.80x = 15,301.80 × 7,306.80
  4. Step 4: Simplify right side
    10,222.80x = 111,807,192.24
  5. Step 5: Solve for x
    x = 111,807,192.24/10,222.80
  6. Step 6: Final answer
    x = 10,937.04

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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.