Home / 13,935.60-19,229.68-7,886.52

Finding the Fourth Proportional to 13,935.60, 19,229.68 and 7,886.52

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Solution

The fourth proportional to 13,935.60, 19,229.68 and 7,886.52 is: 10,882.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.60 : 19,229.68 = 7,886.52 : x
  2. Step 2: Convert to fraction form
    13,935.60/19,229.68 = 7,886.52/x
  3. Step 3: Cross multiply
    13,935.60x = 19,229.68 × 7,886.52
  4. Step 4: Simplify right side
    13,935.60x = 151,655,255.91
  5. Step 5: Solve for x
    x = 151,655,255.91/13,935.60
  6. Step 6: Final answer
    x = 10,882.58

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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.