Home / 18,988.92-26,202.96-11,903.04

Finding the Fourth Proportional to 18,988.92, 26,202.96 and 11,903.04

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Solution

The fourth proportional to 18,988.92, 26,202.96 and 11,903.04 is: 16,425.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988.92 : 26,202.96 = 11,903.04 : x
  2. Step 2: Convert to fraction form
    18,988.92/26,202.96 = 11,903.04/x
  3. Step 3: Cross multiply
    18,988.92x = 26,202.96 × 11,903.04
  4. Step 4: Simplify right side
    18,988.92x = 311,894,881.00
  5. Step 5: Solve for x
    x = 311,894,881.00/18,988.92
  6. Step 6: Final answer
    x = 16,425.10

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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.