Home / 19,215.78-26,517.90-10,718.43

Finding the Fourth Proportional to 19,215.78, 26,517.90 and 10,718.43

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Solution

The fourth proportional to 19,215.78, 26,517.90 and 10,718.43 is: 14,791.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.78 : 26,517.90 = 10,718.43 : x
  2. Step 2: Convert to fraction form
    19,215.78/26,517.90 = 10,718.43/x
  3. Step 3: Cross multiply
    19,215.78x = 26,517.90 × 10,718.43
  4. Step 4: Simplify right side
    19,215.78x = 284,230,254.90
  5. Step 5: Solve for x
    x = 284,230,254.90/19,215.78
  6. Step 6: Final answer
    x = 14,791.50

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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.