Home / 15,575.22-21,495.66-8,769.47

Finding the Fourth Proportional to 15,575.22, 21,495.66 and 8,769.47

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Solution

The fourth proportional to 15,575.22, 21,495.66 and 8,769.47 is: 12,102.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,575.22 : 21,495.66 = 8,769.47 : x
  2. Step 2: Convert to fraction form
    15,575.22/21,495.66 = 8,769.47/x
  3. Step 3: Cross multiply
    15,575.22x = 21,495.66 × 8,769.47
  4. Step 4: Simplify right side
    15,575.22x = 188,505,438.02
  5. Step 5: Solve for x
    x = 188,505,438.02/15,575.22
  6. Step 6: Final answer
    x = 12,102.91

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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.