Home / 10,536.42-15,812.13-4,990.99

Finding the Fourth Proportional to 10,536.42, 15,812.13 and 4,990.99

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Solution

The fourth proportional to 10,536.42, 15,812.13 and 4,990.99 is: 7,490.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,536.42 : 15,812.13 = 4,990.99 : x
  2. Step 2: Convert to fraction form
    10,536.42/15,812.13 = 4,990.99/x
  3. Step 3: Cross multiply
    10,536.42x = 15,812.13 × 4,990.99
  4. Step 4: Simplify right side
    10,536.42x = 78,918,182.71
  5. Step 5: Solve for x
    x = 78,918,182.71/10,536.42
  6. Step 6: Final answer
    x = 7,490.04

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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.