Home / 6,271.40-9,407.10-5,388.20

Finding the Fourth Proportional to 6,271.40, 9,407.10 and 5,388.20

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Solution

The fourth proportional to 6,271.40, 9,407.10 and 5,388.20 is: 8,082.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,271.40 : 9,407.10 = 5,388.20 : x
  2. Step 2: Convert to fraction form
    6,271.40/9,407.10 = 5,388.20/x
  3. Step 3: Cross multiply
    6,271.40x = 9,407.10 × 5,388.20
  4. Step 4: Simplify right side
    6,271.40x = 50,687,336.22
  5. Step 5: Solve for x
    x = 50,687,336.22/6,271.40
  6. Step 6: Final answer
    x = 8,082.30

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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.