Home / 10,225.89-15,319.29-8,570.61

Finding the Fourth Proportional to 10,225.89, 15,319.29 and 8,570.61

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Solution

The fourth proportional to 10,225.89, 15,319.29 and 8,570.61 is: 12,839.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,225.89 : 15,319.29 = 8,570.61 : x
  2. Step 2: Convert to fraction form
    10,225.89/15,319.29 = 8,570.61/x
  3. Step 3: Cross multiply
    10,225.89x = 15,319.29 × 8,570.61
  4. Step 4: Simplify right side
    10,225.89x = 131,295,660.07
  5. Step 5: Solve for x
    x = 131,295,660.07/10,225.89
  6. Step 6: Final answer
    x = 12,839.53

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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.