Home / 8,140.10-12,200.55-6,085.70

Finding the Fourth Proportional to 8,140.10, 12,200.55 and 6,085.70

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Solution

The fourth proportional to 8,140.10, 12,200.55 and 6,085.70 is: 9,121.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.10 : 12,200.55 = 6,085.70 : x
  2. Step 2: Convert to fraction form
    8,140.10/12,200.55 = 6,085.70/x
  3. Step 3: Cross multiply
    8,140.10x = 12,200.55 × 6,085.70
  4. Step 4: Simplify right side
    8,140.10x = 74,248,887.14
  5. Step 5: Solve for x
    x = 74,248,887.14/8,140.10
  6. Step 6: Final answer
    x = 9,121.37

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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.