Home / 11,787.28-16,260.20-7,068.56

Finding the Fourth Proportional to 11,787.28, 16,260.20 and 7,068.56

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Solution

The fourth proportional to 11,787.28, 16,260.20 and 7,068.56 is: 9,750.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,787.28 : 16,260.20 = 7,068.56 : x
  2. Step 2: Convert to fraction form
    11,787.28/16,260.20 = 7,068.56/x
  3. Step 3: Cross multiply
    11,787.28x = 16,260.20 × 7,068.56
  4. Step 4: Simplify right side
    11,787.28x = 114,936,199.31
  5. Step 5: Solve for x
    x = 114,936,199.31/11,787.28
  6. Step 6: Final answer
    x = 9,750.87

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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.