Home / 18,921.32-26,110.20-10,962.92

Finding the Fourth Proportional to 18,921.32, 26,110.20 and 10,962.92

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Solution

The fourth proportional to 18,921.32, 26,110.20 and 10,962.92 is: 15,128.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921.32 : 26,110.20 = 10,962.92 : x
  2. Step 2: Convert to fraction form
    18,921.32/26,110.20 = 10,962.92/x
  3. Step 3: Cross multiply
    18,921.32x = 26,110.20 × 10,962.92
  4. Step 4: Simplify right side
    18,921.32x = 286,244,033.78
  5. Step 5: Solve for x
    x = 286,244,033.78/18,921.32
  6. Step 6: Final answer
    x = 15,128.12

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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.