Home / 11,931.80-17,897.96-4,539.72

Finding the Fourth Proportional to 11,931.80, 17,897.96 and 4,539.72

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Solution

The fourth proportional to 11,931.80, 17,897.96 and 4,539.72 is: 6,809.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.80 : 17,897.96 = 4,539.72 : x
  2. Step 2: Convert to fraction form
    11,931.80/17,897.96 = 4,539.72/x
  3. Step 3: Cross multiply
    11,931.80x = 17,897.96 × 4,539.72
  4. Step 4: Simplify right side
    11,931.80x = 81,251,726.97
  5. Step 5: Solve for x
    x = 81,251,726.97/11,931.80
  6. Step 6: Final answer
    x = 6,809.68

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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.