Home / 10,140.97-15,219.31-6,630.03

Finding the Fourth Proportional to 10,140.97, 15,219.31 and 6,630.03

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Solution

The fourth proportional to 10,140.97, 15,219.31 and 6,630.03 is: 9,950.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.97 : 15,219.31 = 6,630.03 : x
  2. Step 2: Convert to fraction form
    10,140.97/15,219.31 = 6,630.03/x
  3. Step 3: Cross multiply
    10,140.97x = 15,219.31 × 6,630.03
  4. Step 4: Simplify right side
    10,140.97x = 100,904,406.96
  5. Step 5: Solve for x
    x = 100,904,406.96/10,140.97
  6. Step 6: Final answer
    x = 9,950.17

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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.