Home / 7,787.32-11,674.68-5,315.92

Finding the Fourth Proportional to 7,787.32, 11,674.68 and 5,315.92

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Solution

The fourth proportional to 7,787.32, 11,674.68 and 5,315.92 is: 7,969.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.32 : 11,674.68 = 5,315.92 : x
  2. Step 2: Convert to fraction form
    7,787.32/11,674.68 = 5,315.92/x
  3. Step 3: Cross multiply
    7,787.32x = 11,674.68 × 5,315.92
  4. Step 4: Simplify right side
    7,787.32x = 62,061,664.91
  5. Step 5: Solve for x
    x = 62,061,664.91/7,787.32
  6. Step 6: Final answer
    x = 7,969.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.