Home / 19,340.64-26,690.40-10,956.96

Finding the Fourth Proportional to 19,340.64, 26,690.40 and 10,956.96

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Solution

The fourth proportional to 19,340.64, 26,690.40 and 10,956.96 is: 15,120.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,340.64 : 26,690.40 = 10,956.96 : x
  2. Step 2: Convert to fraction form
    19,340.64/26,690.40 = 10,956.96/x
  3. Step 3: Cross multiply
    19,340.64x = 26,690.40 × 10,956.96
  4. Step 4: Simplify right side
    19,340.64x = 292,445,645.18
  5. Step 5: Solve for x
    x = 292,445,645.18/19,340.64
  6. Step 6: Final answer
    x = 15,120.78

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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.