Home / 10,229.40-15,305.70-9,307.80

Finding the Fourth Proportional to 10,229.40, 15,305.70 and 9,307.80

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Solution

The fourth proportional to 10,229.40, 15,305.70 and 9,307.80 is: 13,926.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,229.40 : 15,305.70 = 9,307.80 : x
  2. Step 2: Convert to fraction form
    10,229.40/15,305.70 = 9,307.80/x
  3. Step 3: Cross multiply
    10,229.40x = 15,305.70 × 9,307.80
  4. Step 4: Simplify right side
    10,229.40x = 142,462,394.46
  5. Step 5: Solve for x
    x = 142,462,394.46/10,229.40
  6. Step 6: Final answer
    x = 13,926.76

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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.