Home / 10,084.65-15,127.69-2,689.07

Finding the Fourth Proportional to 10,084.65, 15,127.69 and 2,689.07

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Solution

The fourth proportional to 10,084.65, 15,127.69 and 2,689.07 is: 4,033.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,084.65 : 15,127.69 = 2,689.07 : x
  2. Step 2: Convert to fraction form
    10,084.65/15,127.69 = 2,689.07/x
  3. Step 3: Cross multiply
    10,084.65x = 15,127.69 × 2,689.07
  4. Step 4: Simplify right side
    10,084.65x = 40,679,341.71
  5. Step 5: Solve for x
    x = 40,679,341.71/10,084.65
  6. Step 6: Final answer
    x = 4,033.79

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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.