Home / 10,988.42-16,489.78-4,754.52

Finding the Fourth Proportional to 10,988.42, 16,489.78 and 4,754.52

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Solution

The fourth proportional to 10,988.42, 16,489.78 and 4,754.52 is: 7,134.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.42 : 16,489.78 = 4,754.52 : x
  2. Step 2: Convert to fraction form
    10,988.42/16,489.78 = 4,754.52/x
  3. Step 3: Cross multiply
    10,988.42x = 16,489.78 × 4,754.52
  4. Step 4: Simplify right side
    10,988.42x = 78,400,988.81
  5. Step 5: Solve for x
    x = 78,400,988.81/10,988.42
  6. Step 6: Final answer
    x = 7,134.87

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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.