Home / 8,149.95-11,248.57-5,317.79

Finding the Fourth Proportional to 8,149.95, 11,248.57 and 5,317.79

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Solution

The fourth proportional to 8,149.95, 11,248.57 and 5,317.79 is: 7,339.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149.95 : 11,248.57 = 5,317.79 : x
  2. Step 2: Convert to fraction form
    8,149.95/11,248.57 = 5,317.79/x
  3. Step 3: Cross multiply
    8,149.95x = 11,248.57 × 5,317.79
  4. Step 4: Simplify right side
    8,149.95x = 59,817,483.46
  5. Step 5: Solve for x
    x = 59,817,483.46/8,149.95
  6. Step 6: Final answer
    x = 7,339.61

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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.