Home / 8,637.87-11,920.46-5,099.79

Finding the Fourth Proportional to 8,637.87, 11,920.46 and 5,099.79

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Solution

The fourth proportional to 8,637.87, 11,920.46 and 5,099.79 is: 7,037.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,637.87 : 11,920.46 = 5,099.79 : x
  2. Step 2: Convert to fraction form
    8,637.87/11,920.46 = 5,099.79/x
  3. Step 3: Cross multiply
    8,637.87x = 11,920.46 × 5,099.79
  4. Step 4: Simplify right side
    8,637.87x = 60,791,817.20
  5. Step 5: Solve for x
    x = 60,791,817.20/8,637.87
  6. Step 6: Final answer
    x = 7,037.82

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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.