Home / 7,488.80-11,224.20-5,148.80

Finding the Fourth Proportional to 7,488.80, 11,224.20 and 5,148.80

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Solution

The fourth proportional to 7,488.80, 11,224.20 and 5,148.80 is: 7,717.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,488.80 : 11,224.20 = 5,148.80 : x
  2. Step 2: Convert to fraction form
    7,488.80/11,224.20 = 5,148.80/x
  3. Step 3: Cross multiply
    7,488.80x = 11,224.20 × 5,148.80
  4. Step 4: Simplify right side
    7,488.80x = 57,791,160.96
  5. Step 5: Solve for x
    x = 57,791,160.96/7,488.80
  6. Step 6: Final answer
    x = 7,717.01

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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.