Home / 10,087.80-15,128.10-3,514.20

Finding the Fourth Proportional to 10,087.80, 15,128.10 and 3,514.20

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Solution

The fourth proportional to 10,087.80, 15,128.10 and 3,514.20 is: 5,270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.80 : 15,128.10 = 3,514.20 : x
  2. Step 2: Convert to fraction form
    10,087.80/15,128.10 = 3,514.20/x
  3. Step 3: Cross multiply
    10,087.80x = 15,128.10 × 3,514.20
  4. Step 4: Simplify right side
    10,087.80x = 53,163,169.02
  5. Step 5: Solve for x
    x = 53,163,169.02/10,087.80
  6. Step 6: Final answer
    x = 5,270.05

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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.