Home / 7,397.40-11,117.70-7,267.80

Finding the Fourth Proportional to 7,397.40, 11,117.70 and 7,267.80

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Solution

The fourth proportional to 7,397.40, 11,117.70 and 7,267.80 is: 10,922.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,397.40 : 11,117.70 = 7,267.80 : x
  2. Step 2: Convert to fraction form
    7,397.40/11,117.70 = 7,267.80/x
  3. Step 3: Cross multiply
    7,397.40x = 11,117.70 × 7,267.80
  4. Step 4: Simplify right side
    7,397.40x = 80,801,220.06
  5. Step 5: Solve for x
    x = 80,801,220.06/7,397.40
  6. Step 6: Final answer
    x = 10,922.92

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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.