Home / 7,863.29-10,851.36-4,278.24

Finding the Fourth Proportional to 7,863.29, 10,851.36 and 4,278.24

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Solution

The fourth proportional to 7,863.29, 10,851.36 and 4,278.24 is: 5,903.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.29 : 10,851.36 = 4,278.24 : x
  2. Step 2: Convert to fraction form
    7,863.29/10,851.36 = 4,278.24/x
  3. Step 3: Cross multiply
    7,863.29x = 10,851.36 × 4,278.24
  4. Step 4: Simplify right side
    7,863.29x = 46,424,722.41
  5. Step 5: Solve for x
    x = 46,424,722.41/7,863.29
  6. Step 6: Final answer
    x = 5,903.99

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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.