Home / 15,836.77-21,853.26-10,721.88

Finding the Fourth Proportional to 15,836.77, 21,853.26 and 10,721.88

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Solution

The fourth proportional to 15,836.77, 21,853.26 and 10,721.88 is: 14,795.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,836.77 : 21,853.26 = 10,721.88 : x
  2. Step 2: Convert to fraction form
    15,836.77/21,853.26 = 10,721.88/x
  3. Step 3: Cross multiply
    15,836.77x = 21,853.26 × 10,721.88
  4. Step 4: Simplify right side
    15,836.77x = 234,308,073.07
  5. Step 5: Solve for x
    x = 234,308,073.07/15,836.77
  6. Step 6: Final answer
    x = 14,795.19

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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.