Home / 11,442.06-15,787.98-6,406.43

Finding the Fourth Proportional to 11,442.06, 15,787.98 and 6,406.43

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Solution

The fourth proportional to 11,442.06, 15,787.98 and 6,406.43 is: 8,839.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,442.06 : 15,787.98 = 6,406.43 : x
  2. Step 2: Convert to fraction form
    11,442.06/15,787.98 = 6,406.43/x
  3. Step 3: Cross multiply
    11,442.06x = 15,787.98 × 6,406.43
  4. Step 4: Simplify right side
    11,442.06x = 101,144,509.77
  5. Step 5: Solve for x
    x = 101,144,509.77/11,442.06
  6. Step 6: Final answer
    x = 8,839.71

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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.