Home / 6,117.30-8,426.76-5,218.11

Finding the Fourth Proportional to 6,117.30, 8,426.76 and 5,218.11

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Solution

The fourth proportional to 6,117.30, 8,426.76 and 5,218.11 is: 7,188.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,117.30 : 8,426.76 = 5,218.11 : x
  2. Step 2: Convert to fraction form
    6,117.30/8,426.76 = 5,218.11/x
  3. Step 3: Cross multiply
    6,117.30x = 8,426.76 × 5,218.11
  4. Step 4: Simplify right side
    6,117.30x = 43,971,760.62
  5. Step 5: Solve for x
    x = 43,971,760.62/6,117.30
  6. Step 6: Final answer
    x = 7,188.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.