Home / 7,212.30-10,818.45-6,240.30

Finding the Fourth Proportional to 7,212.30, 10,818.45 and 6,240.30

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Solution

The fourth proportional to 7,212.30, 10,818.45 and 6,240.30 is: 9,360.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.30 : 10,818.45 = 6,240.30 : x
  2. Step 2: Convert to fraction form
    7,212.30/10,818.45 = 6,240.30/x
  3. Step 3: Cross multiply
    7,212.30x = 10,818.45 × 6,240.30
  4. Step 4: Simplify right side
    7,212.30x = 67,510,373.54
  5. Step 5: Solve for x
    x = 67,510,373.54/7,212.30
  6. Step 6: Final answer
    x = 9,360.45

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Similar ratio
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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.