Home / 19,343.57-26,691.74-11,787.15

Finding the Fourth Proportional to 19,343.57, 26,691.74 and 11,787.15

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Solution

The fourth proportional to 19,343.57, 26,691.74 and 11,787.15 is: 16,264.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,343.57 : 26,691.74 = 11,787.15 : x
  2. Step 2: Convert to fraction form
    19,343.57/26,691.74 = 11,787.15/x
  3. Step 3: Cross multiply
    19,343.57x = 26,691.74 × 11,787.15
  4. Step 4: Simplify right side
    19,343.57x = 314,619,484.21
  5. Step 5: Solve for x
    x = 314,619,484.21/19,343.57
  6. Step 6: Final answer
    x = 16,264.81

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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.