Home / 12,337.65-18,512.55-7,076.70

Finding the Fourth Proportional to 12,337.65, 18,512.55 and 7,076.70

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Solution

The fourth proportional to 12,337.65, 18,512.55 and 7,076.70 is: 10,618.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,337.65 : 18,512.55 = 7,076.70 : x
  2. Step 2: Convert to fraction form
    12,337.65/18,512.55 = 7,076.70/x
  3. Step 3: Cross multiply
    12,337.65x = 18,512.55 × 7,076.70
  4. Step 4: Simplify right side
    12,337.65x = 131,007,762.59
  5. Step 5: Solve for x
    x = 131,007,762.59/12,337.65
  6. Step 6: Final answer
    x = 10,618.53

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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.