Home / 17,526.78-26,290.65-7,138.62

Finding the Fourth Proportional to 17,526.78, 26,290.65 and 7,138.62

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Solution

The fourth proportional to 17,526.78, 26,290.65 and 7,138.62 is: 10,708.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,526.78 : 26,290.65 = 7,138.62 : x
  2. Step 2: Convert to fraction form
    17,526.78/26,290.65 = 7,138.62/x
  3. Step 3: Cross multiply
    17,526.78x = 26,290.65 × 7,138.62
  4. Step 4: Simplify right side
    17,526.78x = 187,678,959.90
  5. Step 5: Solve for x
    x = 187,678,959.90/17,526.78
  6. Step 6: Final answer
    x = 10,708.13

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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.