Home / 10,988.34-16,488.66-4,419.14

Finding the Fourth Proportional to 10,988.34, 16,488.66 and 4,419.14

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Solution

The fourth proportional to 10,988.34, 16,488.66 and 4,419.14 is: 6,631.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.34 : 16,488.66 = 4,419.14 : x
  2. Step 2: Convert to fraction form
    10,988.34/16,488.66 = 4,419.14/x
  3. Step 3: Cross multiply
    10,988.34x = 16,488.66 × 4,419.14
  4. Step 4: Simplify right side
    10,988.34x = 72,865,723.83
  5. Step 5: Solve for x
    x = 72,865,723.83/10,988.34
  6. Step 6: Final answer
    x = 6,631.18

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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.