Home / 15,338.43-21,141.54-10,856.43

Finding the Fourth Proportional to 15,338.43, 21,141.54 and 10,856.43

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Solution

The fourth proportional to 15,338.43, 21,141.54 and 10,856.43 is: 14,963.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338.43 : 21,141.54 = 10,856.43 : x
  2. Step 2: Convert to fraction form
    15,338.43/21,141.54 = 10,856.43/x
  3. Step 3: Cross multiply
    15,338.43x = 21,141.54 × 10,856.43
  4. Step 4: Simplify right side
    15,338.43x = 229,521,649.10
  5. Step 5: Solve for x
    x = 229,521,649.10/15,338.43
  6. Step 6: Final answer
    x = 14,963.83

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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.