Home / 15,128.28-22,683.16-6,240.86

Finding the Fourth Proportional to 15,128.28, 22,683.16 and 6,240.86

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Solution

The fourth proportional to 15,128.28, 22,683.16 and 6,240.86 is: 9,357.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128.28 : 22,683.16 = 6,240.86 : x
  2. Step 2: Convert to fraction form
    15,128.28/22,683.16 = 6,240.86/x
  3. Step 3: Cross multiply
    15,128.28x = 22,683.16 × 6,240.86
  4. Step 4: Simplify right side
    15,128.28x = 141,562,359.12
  5. Step 5: Solve for x
    x = 141,562,359.12/15,128.28
  6. Step 6: Final answer
    x = 9,357.47

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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.