Home / 11,897.90-17,839.65-5,322.86

Finding the Fourth Proportional to 11,897.90, 17,839.65 and 5,322.86

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Solution

The fourth proportional to 11,897.90, 17,839.65 and 5,322.86 is: 7,981.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,897.90 : 17,839.65 = 5,322.86 : x
  2. Step 2: Convert to fraction form
    11,897.90/17,839.65 = 5,322.86/x
  3. Step 3: Cross multiply
    11,897.90x = 17,839.65 × 5,322.86
  4. Step 4: Simplify right side
    11,897.90x = 94,957,959.40
  5. Step 5: Solve for x
    x = 94,957,959.40/11,897.90
  6. Step 6: Final answer
    x = 7,981.07

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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.