Home / 10,089.40-15,114.30-6,616.12

Finding the Fourth Proportional to 10,089.40, 15,114.30 and 6,616.12

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Solution

The fourth proportional to 10,089.40, 15,114.30 and 6,616.12 is: 9,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,089.40 : 15,114.30 = 6,616.12 : x
  2. Step 2: Convert to fraction form
    10,089.40/15,114.30 = 6,616.12/x
  3. Step 3: Cross multiply
    10,089.40x = 15,114.30 × 6,616.12
  4. Step 4: Simplify right side
    10,089.40x = 99,998,022.52
  5. Step 5: Solve for x
    x = 99,998,022.52/10,089.40
  6. Step 6: Final answer
    x = 9,911.20

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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.