Home / 19,057.60-26,291.20-11,972.80

Finding the Fourth Proportional to 19,057.60, 26,291.20 and 11,972.80

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Solution

The fourth proportional to 19,057.60, 26,291.20 and 11,972.80 is: 16,517.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,057.60 : 26,291.20 = 11,972.80 : x
  2. Step 2: Convert to fraction form
    19,057.60/26,291.20 = 11,972.80/x
  3. Step 3: Cross multiply
    19,057.60x = 26,291.20 × 11,972.80
  4. Step 4: Simplify right side
    19,057.60x = 314,779,279.36
  5. Step 5: Solve for x
    x = 314,779,279.36/19,057.60
  6. Step 6: Final answer
    x = 16,517.26

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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.