Home / 10,085.70-15,112.17-6,181.86

Finding the Fourth Proportional to 10,085.70, 15,112.17 and 6,181.86

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Solution

The fourth proportional to 10,085.70, 15,112.17 and 6,181.86 is: 9,262.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,085.70 : 15,112.17 = 6,181.86 : x
  2. Step 2: Convert to fraction form
    10,085.70/15,112.17 = 6,181.86/x
  3. Step 3: Cross multiply
    10,085.70x = 15,112.17 × 6,181.86
  4. Step 4: Simplify right side
    10,085.70x = 93,421,319.24
  5. Step 5: Solve for x
    x = 93,421,319.24/10,085.70
  6. Step 6: Final answer
    x = 9,262.75

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1.5x scale

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.