Home / 10,557.28-15,828.24-6,863.20

Finding the Fourth Proportional to 10,557.28, 15,828.24 and 6,863.20

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Solution

The fourth proportional to 10,557.28, 15,828.24 and 6,863.20 is: 10,289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,557.28 : 15,828.24 = 6,863.20 : x
  2. Step 2: Convert to fraction form
    10,557.28/15,828.24 = 6,863.20/x
  3. Step 3: Cross multiply
    10,557.28x = 15,828.24 × 6,863.20
  4. Step 4: Simplify right side
    10,557.28x = 108,632,376.77
  5. Step 5: Solve for x
    x = 108,632,376.77/10,557.28
  6. Step 6: Final answer
    x = 10,289.81

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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.