Home / 11,475.73-15,815.04-8,953.84

Finding the Fourth Proportional to 11,475.73, 15,815.04 and 8,953.84

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Solution

The fourth proportional to 11,475.73, 15,815.04 and 8,953.84 is: 12,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,475.73 : 15,815.04 = 8,953.84 : x
  2. Step 2: Convert to fraction form
    11,475.73/15,815.04 = 8,953.84/x
  3. Step 3: Cross multiply
    11,475.73x = 15,815.04 × 8,953.84
  4. Step 4: Simplify right side
    11,475.73x = 141,605,337.75
  5. Step 5: Solve for x
    x = 141,605,337.75/11,475.73
  6. Step 6: Final answer
    x = 12,339.55

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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.