Home / 15,864.32-21,886.61-10,198.31

Finding the Fourth Proportional to 15,864.32, 21,886.61 and 10,198.31

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Solution

The fourth proportional to 15,864.32, 21,886.61 and 10,198.31 is: 14,069.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,864.32 : 21,886.61 = 10,198.31 : x
  2. Step 2: Convert to fraction form
    15,864.32/21,886.61 = 10,198.31/x
  3. Step 3: Cross multiply
    15,864.32x = 21,886.61 × 10,198.31
  4. Step 4: Simplify right side
    15,864.32x = 223,206,273.20
  5. Step 5: Solve for x
    x = 223,206,273.20/15,864.32
  6. Step 6: Final answer
    x = 14,069.70

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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.