Home / 10,719.29-14,787.68-6,943.71

Finding the Fourth Proportional to 10,719.29, 14,787.68 and 6,943.71

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Solution

The fourth proportional to 10,719.29, 14,787.68 and 6,943.71 is: 9,579.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719.29 : 14,787.68 = 6,943.71 : x
  2. Step 2: Convert to fraction form
    10,719.29/14,787.68 = 6,943.71/x
  3. Step 3: Cross multiply
    10,719.29x = 14,787.68 × 6,943.71
  4. Step 4: Simplify right side
    10,719.29x = 102,681,361.49
  5. Step 5: Solve for x
    x = 102,681,361.49/10,719.29
  6. Step 6: Final answer
    x = 9,579.12

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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.