Home / 15,666.44-21,619.91-8,592.40

Finding the Fourth Proportional to 15,666.44, 21,619.91 and 8,592.40

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Solution

The fourth proportional to 15,666.44, 21,619.91 and 8,592.40 is: 11,857.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,666.44 : 21,619.91 = 8,592.40 : x
  2. Step 2: Convert to fraction form
    15,666.44/21,619.91 = 8,592.40/x
  3. Step 3: Cross multiply
    15,666.44x = 21,619.91 × 8,592.40
  4. Step 4: Simplify right side
    15,666.44x = 185,766,914.68
  5. Step 5: Solve for x
    x = 185,766,914.68/15,666.44
  6. Step 6: Final answer
    x = 11,857.63

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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.