Home / 6,423.20-8,853.76-5,242.24

Finding the Fourth Proportional to 6,423.20, 8,853.76 and 5,242.24

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Solution

The fourth proportional to 6,423.20, 8,853.76 and 5,242.24 is: 7,225.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,423.20 : 8,853.76 = 5,242.24 : x
  2. Step 2: Convert to fraction form
    6,423.20/8,853.76 = 5,242.24/x
  3. Step 3: Cross multiply
    6,423.20x = 8,853.76 × 5,242.24
  4. Step 4: Simplify right side
    6,423.20x = 46,413,534.82
  5. Step 5: Solve for x
    x = 46,413,534.82/6,423.20
  6. Step 6: Final answer
    x = 7,225.92

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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.