Home / 8,278.20-11,424.12-4,501.62

Finding the Fourth Proportional to 8,278.20, 11,424.12 and 4,501.62

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Solution

The fourth proportional to 8,278.20, 11,424.12 and 4,501.62 is: 6,212.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.20 : 11,424.12 = 4,501.62 : x
  2. Step 2: Convert to fraction form
    8,278.20/11,424.12 = 4,501.62/x
  3. Step 3: Cross multiply
    8,278.20x = 11,424.12 × 4,501.62
  4. Step 4: Simplify right side
    8,278.20x = 51,427,047.07
  5. Step 5: Solve for x
    x = 51,427,047.07/8,278.20
  6. Step 6: Final answer
    x = 6,212.35

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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.