Home / 15,926.58-21,988.80-10,899.18

Finding the Fourth Proportional to 15,926.58, 21,988.80 and 10,899.18

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Solution

The fourth proportional to 15,926.58, 21,988.80 and 10,899.18 is: 15,047.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,926.58 : 21,988.80 = 10,899.18 : x
  2. Step 2: Convert to fraction form
    15,926.58/21,988.80 = 10,899.18/x
  3. Step 3: Cross multiply
    15,926.58x = 21,988.80 × 10,899.18
  4. Step 4: Simplify right side
    15,926.58x = 239,659,889.18
  5. Step 5: Solve for x
    x = 239,659,889.18/15,926.58
  6. Step 6: Final answer
    x = 15,047.79

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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.