Home / 18,951.96-26,128.26-13,279.08

Finding the Fourth Proportional to 18,951.96, 26,128.26 and 13,279.08

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Solution

The fourth proportional to 18,951.96, 26,128.26 and 13,279.08 is: 18,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,951.96 : 26,128.26 = 13,279.08 : x
  2. Step 2: Convert to fraction form
    18,951.96/26,128.26 = 13,279.08/x
  3. Step 3: Cross multiply
    18,951.96x = 26,128.26 × 13,279.08
  4. Step 4: Simplify right side
    18,951.96x = 346,959,254.80
  5. Step 5: Solve for x
    x = 346,959,254.80/18,951.96
  6. Step 6: Final answer
    x = 18,307.30

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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.