Home / 19,073.40-26,321.20-10,689.72

Finding the Fourth Proportional to 19,073.40, 26,321.20 and 10,689.72

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Solution

The fourth proportional to 19,073.40, 26,321.20 and 10,689.72 is: 14,751.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,073.40 : 26,321.20 = 10,689.72 : x
  2. Step 2: Convert to fraction form
    19,073.40/26,321.20 = 10,689.72/x
  3. Step 3: Cross multiply
    19,073.40x = 26,321.20 × 10,689.72
  4. Step 4: Simplify right side
    19,073.40x = 281,366,258.06
  5. Step 5: Solve for x
    x = 281,366,258.06/19,073.40
  6. Step 6: Final answer
    x = 14,751.76

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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.