Home / 19,052.72-26,301.88-12,689.90

Finding the Fourth Proportional to 19,052.72, 26,301.88 and 12,689.90

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Solution

The fourth proportional to 19,052.72, 26,301.88 and 12,689.90 is: 17,518.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,052.72 : 26,301.88 = 12,689.90 : x
  2. Step 2: Convert to fraction form
    19,052.72/26,301.88 = 12,689.90/x
  3. Step 3: Cross multiply
    19,052.72x = 26,301.88 × 12,689.90
  4. Step 4: Simplify right side
    19,052.72x = 333,768,227.01
  5. Step 5: Solve for x
    x = 333,768,227.01/19,052.72
  6. Step 6: Final answer
    x = 17,518.14

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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.