Home / 10,780.18-16,170.52-2,988.96

Finding the Fourth Proportional to 10,780.18, 16,170.52 and 2,988.96

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Solution

The fourth proportional to 10,780.18, 16,170.52 and 2,988.96 is: 4,483.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780.18 : 16,170.52 = 2,988.96 : x
  2. Step 2: Convert to fraction form
    10,780.18/16,170.52 = 2,988.96/x
  3. Step 3: Cross multiply
    10,780.18x = 16,170.52 × 2,988.96
  4. Step 4: Simplify right side
    10,780.18x = 48,333,037.46
  5. Step 5: Solve for x
    x = 48,333,037.46/10,780.18
  6. Step 6: Final answer
    x = 4,483.51

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1.5x scale

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.