Home / 15,266.82-21,069.08-8,554.61

Finding the Fourth Proportional to 15,266.82, 21,069.08 and 8,554.61

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Solution

The fourth proportional to 15,266.82, 21,069.08 and 8,554.61 is: 11,805.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,266.82 : 21,069.08 = 8,554.61 : x
  2. Step 2: Convert to fraction form
    15,266.82/21,069.08 = 8,554.61/x
  3. Step 3: Cross multiply
    15,266.82x = 21,069.08 × 8,554.61
  4. Step 4: Simplify right side
    15,266.82x = 180,237,691.79
  5. Step 5: Solve for x
    x = 180,237,691.79/15,266.82
  6. Step 6: Final answer
    x = 11,805.84

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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.