Home / 10,787.67-16,181.51-3,392.78

Finding the Fourth Proportional to 10,787.67, 16,181.51 and 3,392.78

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Solution

The fourth proportional to 10,787.67, 16,181.51 and 3,392.78 is: 5,089.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.67 : 16,181.51 = 3,392.78 : x
  2. Step 2: Convert to fraction form
    10,787.67/16,181.51 = 3,392.78/x
  3. Step 3: Cross multiply
    10,787.67x = 16,181.51 × 3,392.78
  4. Step 4: Simplify right side
    10,787.67x = 54,900,303.50
  5. Step 5: Solve for x
    x = 54,900,303.50/10,787.67
  6. Step 6: Final answer
    x = 5,089.17

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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.