Home / 10,870.20-16,305.30-10,214.10

Finding the Fourth Proportional to 10,870.20, 16,305.30 and 10,214.10

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Solution

The fourth proportional to 10,870.20, 16,305.30 and 10,214.10 is: 15,321.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,870.20 : 16,305.30 = 10,214.10 : x
  2. Step 2: Convert to fraction form
    10,870.20/16,305.30 = 10,214.10/x
  3. Step 3: Cross multiply
    10,870.20x = 16,305.30 × 10,214.10
  4. Step 4: Simplify right side
    10,870.20x = 166,543,964.73
  5. Step 5: Solve for x
    x = 166,543,964.73/10,870.20
  6. Step 6: Final answer
    x = 15,321.15

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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.