Home / 19,339.92-26,689.06-10,956.40

Finding the Fourth Proportional to 19,339.92, 26,689.06 and 10,956.40

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Solution

The fourth proportional to 19,339.92, 26,689.06 and 10,956.40 is: 15,119.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,339.92 : 26,689.06 = 10,956.40 : x
  2. Step 2: Convert to fraction form
    19,339.92/26,689.06 = 10,956.40/x
  3. Step 3: Cross multiply
    19,339.92x = 26,689.06 × 10,956.40
  4. Step 4: Simplify right side
    19,339.92x = 292,416,016.98
  5. Step 5: Solve for x
    x = 292,416,016.98/19,339.92
  6. Step 6: Final answer
    x = 15,119.82

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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.