Home / 10,240.16-15,361.85-3,666.20

Finding the Fourth Proportional to 10,240.16, 15,361.85 and 3,666.20

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Solution

The fourth proportional to 10,240.16, 15,361.85 and 3,666.20 is: 5,499.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,240.16 : 15,361.85 = 3,666.20 : x
  2. Step 2: Convert to fraction form
    10,240.16/15,361.85 = 3,666.20/x
  3. Step 3: Cross multiply
    10,240.16x = 15,361.85 × 3,666.20
  4. Step 4: Simplify right side
    10,240.16x = 56,319,546.83
  5. Step 5: Solve for x
    x = 56,319,546.83/10,240.16
  6. Step 6: Final answer
    x = 5,499.87

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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.