Home / 10,384.40-15,580.80-4,232.72

Finding the Fourth Proportional to 10,384.40, 15,580.80 and 4,232.72

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Solution

The fourth proportional to 10,384.40, 15,580.80 and 4,232.72 is: 6,350.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,384.40 : 15,580.80 = 4,232.72 : x
  2. Step 2: Convert to fraction form
    10,384.40/15,580.80 = 4,232.72/x
  3. Step 3: Cross multiply
    10,384.40x = 15,580.80 × 4,232.72
  4. Step 4: Simplify right side
    10,384.40x = 65,949,163.78
  5. Step 5: Solve for x
    x = 65,949,163.78/10,384.40
  6. Step 6: Final answer
    x = 6,350.79

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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.