Home / 10,084.10-15,138.30-10,011.20

Finding the Fourth Proportional to 10,084.10, 15,138.30 and 10,011.20

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Solution

The fourth proportional to 10,084.10, 15,138.30 and 10,011.20 is: 15,028.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,084.10 : 15,138.30 = 10,011.20 : x
  2. Step 2: Convert to fraction form
    10,084.10/15,138.30 = 10,011.20/x
  3. Step 3: Cross multiply
    10,084.10x = 15,138.30 × 10,011.20
  4. Step 4: Simplify right side
    10,084.10x = 151,552,548.96
  5. Step 5: Solve for x
    x = 151,552,548.96/10,084.10
  6. Step 6: Final answer
    x = 15,028.86

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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.