Home / 12,287.40-16,953.57-7,251.72

Finding the Fourth Proportional to 12,287.40, 16,953.57 and 7,251.72

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Solution

The fourth proportional to 12,287.40, 16,953.57 and 7,251.72 is: 10,005.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,287.40 : 16,953.57 = 7,251.72 : x
  2. Step 2: Convert to fraction form
    12,287.40/16,953.57 = 7,251.72/x
  3. Step 3: Cross multiply
    12,287.40x = 16,953.57 × 7,251.72
  4. Step 4: Simplify right side
    12,287.40x = 122,942,542.64
  5. Step 5: Solve for x
    x = 122,942,542.64/12,287.40
  6. Step 6: Final answer
    x = 10,005.58

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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.