Home / 19,215.28-26,516.76-10,831.76

Finding the Fourth Proportional to 19,215.28, 26,516.76 and 10,831.76

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Solution

The fourth proportional to 19,215.28, 26,516.76 and 10,831.76 is: 14,947.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.28 : 26,516.76 = 10,831.76 : x
  2. Step 2: Convert to fraction form
    19,215.28/26,516.76 = 10,831.76/x
  3. Step 3: Cross multiply
    19,215.28x = 26,516.76 × 10,831.76
  4. Step 4: Simplify right side
    19,215.28x = 287,223,180.30
  5. Step 5: Solve for x
    x = 287,223,180.30/19,215.28
  6. Step 6: Final answer
    x = 14,947.64

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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.