Home / 10,258.52-15,387.77-7,921.93

Finding the Fourth Proportional to 10,258.52, 15,387.77 and 7,921.93

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Solution

The fourth proportional to 10,258.52, 15,387.77 and 7,921.93 is: 11,882.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,258.52 : 15,387.77 = 7,921.93 : x
  2. Step 2: Convert to fraction form
    10,258.52/15,387.77 = 7,921.93/x
  3. Step 3: Cross multiply
    10,258.52x = 15,387.77 × 7,921.93
  4. Step 4: Simplify right side
    10,258.52x = 121,900,879.76
  5. Step 5: Solve for x
    x = 121,900,879.76/10,258.52
  6. Step 6: Final answer
    x = 11,882.89

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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.