Home / 7,785.21-10,743.63-4,248.51

Finding the Fourth Proportional to 7,785.21, 10,743.63 and 4,248.51

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Solution

The fourth proportional to 7,785.21, 10,743.63 and 4,248.51 is: 5,862.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.21 : 10,743.63 = 4,248.51 : x
  2. Step 2: Convert to fraction form
    7,785.21/10,743.63 = 4,248.51/x
  3. Step 3: Cross multiply
    7,785.21x = 10,743.63 × 4,248.51
  4. Step 4: Simplify right side
    7,785.21x = 45,644,419.49
  5. Step 5: Solve for x
    x = 45,644,419.49/7,785.21
  6. Step 6: Final answer
    x = 5,862.97

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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.