Home / 15,257.30-21,054.45-8,542.82

Finding the Fourth Proportional to 15,257.30, 21,054.45 and 8,542.82

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Solution

The fourth proportional to 15,257.30, 21,054.45 and 8,542.82 is: 11,788.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,257.30 : 21,054.45 = 8,542.82 : x
  2. Step 2: Convert to fraction form
    15,257.30/21,054.45 = 8,542.82/x
  3. Step 3: Cross multiply
    15,257.30x = 21,054.45 × 8,542.82
  4. Step 4: Simplify right side
    15,257.30x = 179,864,376.55
  5. Step 5: Solve for x
    x = 179,864,376.55/15,257.30
  6. Step 6: Final answer
    x = 11,788.74

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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.