Home / 12,568.17-18,851.43-4,776.78

Finding the Fourth Proportional to 12,568.17, 18,851.43 and 4,776.78

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Solution

The fourth proportional to 12,568.17, 18,851.43 and 4,776.78 is: 7,164.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,568.17 : 18,851.43 = 4,776.78 : x
  2. Step 2: Convert to fraction form
    12,568.17/18,851.43 = 4,776.78/x
  3. Step 3: Cross multiply
    12,568.17x = 18,851.43 × 4,776.78
  4. Step 4: Simplify right side
    12,568.17x = 90,049,133.80
  5. Step 5: Solve for x
    x = 90,049,133.80/12,568.17
  6. Step 6: Final answer
    x = 7,164.86

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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.