Home / 12,787.10-19,156.89-6,948.62

Finding the Fourth Proportional to 12,787.10, 19,156.89 and 6,948.62

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Solution

The fourth proportional to 12,787.10, 19,156.89 and 6,948.62 is: 10,410.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787.10 : 19,156.89 = 6,948.62 : x
  2. Step 2: Convert to fraction form
    12,787.10/19,156.89 = 6,948.62/x
  3. Step 3: Cross multiply
    12,787.10x = 19,156.89 × 6,948.62
  4. Step 4: Simplify right side
    12,787.10x = 133,113,948.99
  5. Step 5: Solve for x
    x = 133,113,948.99/12,787.10
  6. Step 6: Final answer
    x = 10,410.02

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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.