Home / 7,785.24-10,743.36-4,427.80

Finding the Fourth Proportional to 7,785.24, 10,743.36 and 4,427.80

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Solution

The fourth proportional to 7,785.24, 10,743.36 and 4,427.80 is: 6,110.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.24 : 10,743.36 = 4,427.80 : x
  2. Step 2: Convert to fraction form
    7,785.24/10,743.36 = 4,427.80/x
  3. Step 3: Cross multiply
    7,785.24x = 10,743.36 × 4,427.80
  4. Step 4: Simplify right side
    7,785.24x = 47,569,449.41
  5. Step 5: Solve for x
    x = 47,569,449.41/7,785.24
  6. Step 6: Final answer
    x = 6,110.21

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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.