Home / 19,215.36-26,517.24-10,831.86

Finding the Fourth Proportional to 19,215.36, 26,517.24 and 10,831.86

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Solution

The fourth proportional to 19,215.36, 26,517.24 and 10,831.86 is: 14,947.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.36 : 26,517.24 = 10,831.86 : x
  2. Step 2: Convert to fraction form
    19,215.36/26,517.24 = 10,831.86/x
  3. Step 3: Cross multiply
    19,215.36x = 26,517.24 × 10,831.86
  4. Step 4: Simplify right side
    19,215.36x = 287,231,031.27
  5. Step 5: Solve for x
    x = 287,231,031.27/19,215.36
  6. Step 6: Final answer
    x = 14,947.99

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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.