Home / 10,988.46-16,488.09-4,419.36

Finding the Fourth Proportional to 10,988.46, 16,488.09 and 4,419.36

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Solution

The fourth proportional to 10,988.46, 16,488.09 and 4,419.36 is: 6,631.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.46 : 16,488.09 = 4,419.36 : x
  2. Step 2: Convert to fraction form
    10,988.46/16,488.09 = 4,419.36/x
  3. Step 3: Cross multiply
    10,988.46x = 16,488.09 × 4,419.36
  4. Step 4: Simplify right side
    10,988.46x = 72,866,805.42
  5. Step 5: Solve for x
    x = 72,866,805.42/10,988.46
  6. Step 6: Final answer
    x = 6,631.21

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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.