Home / 13,456.76-18,567.42-8,151.80

Finding the Fourth Proportional to 13,456.76, 18,567.42 and 8,151.80

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Solution

The fourth proportional to 13,456.76, 18,567.42 and 8,151.80 is: 11,247.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.76 : 18,567.42 = 8,151.80 : x
  2. Step 2: Convert to fraction form
    13,456.76/18,567.42 = 8,151.80/x
  3. Step 3: Cross multiply
    13,456.76x = 18,567.42 × 8,151.80
  4. Step 4: Simplify right side
    13,456.76x = 151,357,894.36
  5. Step 5: Solve for x
    x = 151,357,894.36/13,456.76
  6. Step 6: Final answer
    x = 11,247.72

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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.