Home / 19,780.61-27,298.00-11,284.12

Finding the Fourth Proportional to 19,780.61, 27,298.00 and 11,284.12

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Solution

The fourth proportional to 19,780.61, 27,298.00 and 11,284.12 is: 15,572.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.61 : 27,298.00 = 11,284.12 : x
  2. Step 2: Convert to fraction form
    19,780.61/27,298.00 = 11,284.12/x
  3. Step 3: Cross multiply
    19,780.61x = 27,298.00 × 11,284.12
  4. Step 4: Simplify right side
    19,780.61x = 308,033,910.95
  5. Step 5: Solve for x
    x = 308,033,910.95/19,780.61
  6. Step 6: Final answer
    x = 15,572.52

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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.