Home / 8,278.68-11,423.74-4,693.80

Finding the Fourth Proportional to 8,278.68, 11,423.74 and 4,693.80

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Solution

The fourth proportional to 8,278.68, 11,423.74 and 4,693.80 is: 6,476.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.68 : 11,423.74 = 4,693.80 : x
  2. Step 2: Convert to fraction form
    8,278.68/11,423.74 = 4,693.80/x
  3. Step 3: Cross multiply
    8,278.68x = 11,423.74 × 4,693.80
  4. Step 4: Simplify right side
    8,278.68x = 53,620,750.81
  5. Step 5: Solve for x
    x = 53,620,750.81/8,278.68
  6. Step 6: Final answer
    x = 6,476.97

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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.