Home / 15,130.04-20,879.96-8,324.33

Finding the Fourth Proportional to 15,130.04, 20,879.96 and 8,324.33

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Solution

The fourth proportional to 15,130.04, 20,879.96 and 8,324.33 is: 11,487.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,130.04 : 20,879.96 = 8,324.33 : x
  2. Step 2: Convert to fraction form
    15,130.04/20,879.96 = 8,324.33/x
  3. Step 3: Cross multiply
    15,130.04x = 20,879.96 × 8,324.33
  4. Step 4: Simplify right side
    15,130.04x = 173,811,531.41
  5. Step 5: Solve for x
    x = 173,811,531.41/15,130.04
  6. Step 6: Final answer
    x = 11,487.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.