Home / 10,079.80-15,116.10-3,506.20

Finding the Fourth Proportional to 10,079.80, 15,116.10 and 3,506.20

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Solution

The fourth proportional to 10,079.80, 15,116.10 and 3,506.20 is: 5,258.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,079.80 : 15,116.10 = 3,506.20 : x
  2. Step 2: Convert to fraction form
    10,079.80/15,116.10 = 3,506.20/x
  3. Step 3: Cross multiply
    10,079.80x = 15,116.10 × 3,506.20
  4. Step 4: Simplify right side
    10,079.80x = 53,000,069.82
  5. Step 5: Solve for x
    x = 53,000,069.82/10,079.80
  6. Step 6: Final answer
    x = 5,258.05

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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.