Home / 7,386.50-11,079.76-7,200.60

Finding the Fourth Proportional to 7,386.50, 11,079.76 and 7,200.60

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Solution

The fourth proportional to 7,386.50, 11,079.76 and 7,200.60 is: 10,800.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,386.50 : 11,079.76 = 7,200.60 : x
  2. Step 2: Convert to fraction form
    7,386.50/11,079.76 = 7,200.60/x
  3. Step 3: Cross multiply
    7,386.50x = 11,079.76 × 7,200.60
  4. Step 4: Simplify right side
    7,386.50x = 79,780,919.86
  5. Step 5: Solve for x
    x = 79,780,919.86/7,386.50
  6. Step 6: Final answer
    x = 10,800.91

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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.