Home / 11,005.26-15,187.28-6,289.52

Finding the Fourth Proportional to 11,005.26, 15,187.28 and 6,289.52

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Solution

The fourth proportional to 11,005.26, 15,187.28 and 6,289.52 is: 8,679.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005.26 : 15,187.28 = 6,289.52 : x
  2. Step 2: Convert to fraction form
    11,005.26/15,187.28 = 6,289.52/x
  3. Step 3: Cross multiply
    11,005.26x = 15,187.28 × 6,289.52
  4. Step 4: Simplify right side
    11,005.26x = 95,520,701.31
  5. Step 5: Solve for x
    x = 95,520,701.31/11,005.26
  6. Step 6: Final answer
    x = 8,679.55

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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.