Home / 17,780.19-26,679.60-11,538.74

Finding the Fourth Proportional to 17,780.19, 26,679.60 and 11,538.74

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Solution

The fourth proportional to 17,780.19, 26,679.60 and 11,538.74 is: 17,314.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,780.19 : 26,679.60 = 11,538.74 : x
  2. Step 2: Convert to fraction form
    17,780.19/26,679.60 = 11,538.74/x
  3. Step 3: Cross multiply
    17,780.19x = 26,679.60 × 11,538.74
  4. Step 4: Simplify right side
    17,780.19x = 307,848,834.31
  5. Step 5: Solve for x
    x = 307,848,834.31/17,780.19
  6. Step 6: Final answer
    x = 17,314.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.