Home / 11,079.86-15,291.12-6,301.30

Finding the Fourth Proportional to 11,079.86, 15,291.12 and 6,301.30

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Solution

The fourth proportional to 11,079.86, 15,291.12 and 6,301.30 is: 8,696.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.86 : 15,291.12 = 6,301.30 : x
  2. Step 2: Convert to fraction form
    11,079.86/15,291.12 = 6,301.30/x
  3. Step 3: Cross multiply
    11,079.86x = 15,291.12 × 6,301.30
  4. Step 4: Simplify right side
    11,079.86x = 96,353,934.46
  5. Step 5: Solve for x
    x = 96,353,934.46/11,079.86
  6. Step 6: Final answer
    x = 8,696.31

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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.