Home / 11,439.93-15,787.35-8,088.65

Finding the Fourth Proportional to 11,439.93, 15,787.35 and 8,088.65

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Solution

The fourth proportional to 11,439.93, 15,787.35 and 8,088.65 is: 11,162.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,439.93 : 15,787.35 = 8,088.65 : x
  2. Step 2: Convert to fraction form
    11,439.93/15,787.35 = 8,088.65/x
  3. Step 3: Cross multiply
    11,439.93x = 15,787.35 × 8,088.65
  4. Step 4: Simplify right side
    11,439.93x = 127,698,348.58
  5. Step 5: Solve for x
    x = 127,698,348.58/11,439.93
  6. Step 6: Final answer
    x = 11,162.51

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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.