Home / 8,260.24-12,379.56-7,160.08

Finding the Fourth Proportional to 8,260.24, 12,379.56 and 7,160.08

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Solution

The fourth proportional to 8,260.24, 12,379.56 and 7,160.08 is: 10,730.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,260.24 : 12,379.56 = 7,160.08 : x
  2. Step 2: Convert to fraction form
    8,260.24/12,379.56 = 7,160.08/x
  3. Step 3: Cross multiply
    8,260.24x = 12,379.56 × 7,160.08
  4. Step 4: Simplify right side
    8,260.24x = 88,638,639.96
  5. Step 5: Solve for x
    x = 88,638,639.96/8,260.24
  6. Step 6: Final answer
    x = 10,730.76

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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.