Home / 10,510.61-15,768.22-3,115.65

Finding the Fourth Proportional to 10,510.61, 15,768.22 and 3,115.65

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Solution

The fourth proportional to 10,510.61, 15,768.22 and 3,115.65 is: 4,674.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,510.61 : 15,768.22 = 3,115.65 : x
  2. Step 2: Convert to fraction form
    10,510.61/15,768.22 = 3,115.65/x
  3. Step 3: Cross multiply
    10,510.61x = 15,768.22 × 3,115.65
  4. Step 4: Simplify right side
    10,510.61x = 49,128,160.22
  5. Step 5: Solve for x
    x = 49,128,160.22/10,510.61
  6. Step 6: Final answer
    x = 4,674.15

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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.