Home / 10,988.80-16,483.28-4,063.20

Finding the Fourth Proportional to 10,988.80, 16,483.28 and 4,063.20

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Solution

The fourth proportional to 10,988.80, 16,483.28 and 4,063.20 is: 6,094.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.80 : 16,483.28 = 4,063.20 : x
  2. Step 2: Convert to fraction form
    10,988.80/16,483.28 = 4,063.20/x
  3. Step 3: Cross multiply
    10,988.80x = 16,483.28 × 4,063.20
  4. Step 4: Simplify right side
    10,988.80x = 66,974,863.30
  5. Step 5: Solve for x
    x = 66,974,863.30/10,988.80
  6. Step 6: Final answer
    x = 6,094.83

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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.