Home / 10,239.76-15,346.98-5,306.56

Finding the Fourth Proportional to 10,239.76, 15,346.98 and 5,306.56

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Solution

The fourth proportional to 10,239.76, 15,346.98 and 5,306.56 is: 7,953.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,239.76 : 15,346.98 = 5,306.56 : x
  2. Step 2: Convert to fraction form
    10,239.76/15,346.98 = 5,306.56/x
  3. Step 3: Cross multiply
    10,239.76x = 15,346.98 × 5,306.56
  4. Step 4: Simplify right side
    10,239.76x = 81,439,670.19
  5. Step 5: Solve for x
    x = 81,439,670.19/10,239.76
  6. Step 6: Final answer
    x = 7,953.28

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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.