Home / 18,855.72-26,020.08-11,306.28

Finding the Fourth Proportional to 18,855.72, 26,020.08 and 11,306.28

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Solution

The fourth proportional to 18,855.72, 26,020.08 and 11,306.28 is: 15,602.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855.72 : 26,020.08 = 11,306.28 : x
  2. Step 2: Convert to fraction form
    18,855.72/26,020.08 = 11,306.28/x
  3. Step 3: Cross multiply
    18,855.72x = 26,020.08 × 11,306.28
  4. Step 4: Simplify right side
    18,855.72x = 294,190,310.10
  5. Step 5: Solve for x
    x = 294,190,310.10/18,855.72
  6. Step 6: Final answer
    x = 15,602.18

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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.