Home / 8,340.30-11,508.50-5,360.15

Finding the Fourth Proportional to 8,340.30, 11,508.50 and 5,360.15

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Solution

The fourth proportional to 8,340.30, 11,508.50 and 5,360.15 is: 7,396.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.30 : 11,508.50 = 5,360.15 : x
  2. Step 2: Convert to fraction form
    8,340.30/11,508.50 = 5,360.15/x
  3. Step 3: Cross multiply
    8,340.30x = 11,508.50 × 5,360.15
  4. Step 4: Simplify right side
    8,340.30x = 61,687,328.45
  5. Step 5: Solve for x
    x = 61,687,328.45/8,340.30
  6. Step 6: Final answer
    x = 7,396.30

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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.