Home / 7,419.60-11,136.69-5,648.13

Finding the Fourth Proportional to 7,419.60, 11,136.69 and 5,648.13

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Solution

The fourth proportional to 7,419.60, 11,136.69 and 5,648.13 is: 8,477.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.60 : 11,136.69 = 5,648.13 : x
  2. Step 2: Convert to fraction form
    7,419.60/11,136.69 = 5,648.13/x
  3. Step 3: Cross multiply
    7,419.60x = 11,136.69 × 5,648.13
  4. Step 4: Simplify right side
    7,419.60x = 62,901,472.89
  5. Step 5: Solve for x
    x = 62,901,472.89/7,419.60
  6. Step 6: Final answer
    x = 8,477.74

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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.