Home / 12,665.44-18,999.70-5,274.92

Finding the Fourth Proportional to 12,665.44, 18,999.70 and 5,274.92

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Solution

The fourth proportional to 12,665.44, 18,999.70 and 5,274.92 is: 7,913.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,665.44 : 18,999.70 = 5,274.92 : x
  2. Step 2: Convert to fraction form
    12,665.44/18,999.70 = 5,274.92/x
  3. Step 3: Cross multiply
    12,665.44x = 18,999.70 × 5,274.92
  4. Step 4: Simplify right side
    12,665.44x = 100,221,897.52
  5. Step 5: Solve for x
    x = 100,221,897.52/12,665.44
  6. Step 6: Final answer
    x = 7,913.02

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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.