Home / 10,125.72-15,202.56-6,998.40

Finding the Fourth Proportional to 10,125.72, 15,202.56 and 6,998.40

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Solution

The fourth proportional to 10,125.72, 15,202.56 and 6,998.40 is: 10,507.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.72 : 15,202.56 = 6,998.40 : x
  2. Step 2: Convert to fraction form
    10,125.72/15,202.56 = 6,998.40/x
  3. Step 3: Cross multiply
    10,125.72x = 15,202.56 × 6,998.40
  4. Step 4: Simplify right side
    10,125.72x = 106,393,595.90
  5. Step 5: Solve for x
    x = 106,393,595.90/10,125.72
  6. Step 6: Final answer
    x = 10,507.26

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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.