Home / 18,921.96-26,109.84-10,962.48

Finding the Fourth Proportional to 18,921.96, 26,109.84 and 10,962.48

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Solution

The fourth proportional to 18,921.96, 26,109.84 and 10,962.48 is: 15,126.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921.96 : 26,109.84 = 10,962.48 : x
  2. Step 2: Convert to fraction form
    18,921.96/26,109.84 = 10,962.48/x
  3. Step 3: Cross multiply
    18,921.96x = 26,109.84 × 10,962.48
  4. Step 4: Simplify right side
    18,921.96x = 286,228,598.80
  5. Step 5: Solve for x
    x = 286,228,598.80/18,921.96
  6. Step 6: Final answer
    x = 15,126.79

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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.