Home / 12,260.78-18,376.70-5,238.74

Finding the Fourth Proportional to 12,260.78, 18,376.70 and 5,238.74

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Solution

The fourth proportional to 12,260.78, 18,376.70 and 5,238.74 is: 7,851.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.78 : 18,376.70 = 5,238.74 : x
  2. Step 2: Convert to fraction form
    12,260.78/18,376.70 = 5,238.74/x
  3. Step 3: Cross multiply
    12,260.78x = 18,376.70 × 5,238.74
  4. Step 4: Simplify right side
    12,260.78x = 96,270,753.36
  5. Step 5: Solve for x
    x = 96,270,753.36/12,260.78
  6. Step 6: Final answer
    x = 7,851.93

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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.