Home / 10,661.62-15,985.58-4,425.93

Finding the Fourth Proportional to 10,661.62, 15,985.58 and 4,425.93

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Solution

The fourth proportional to 10,661.62, 15,985.58 and 4,425.93 is: 6,636.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,661.62 : 15,985.58 = 4,425.93 : x
  2. Step 2: Convert to fraction form
    10,661.62/15,985.58 = 4,425.93/x
  3. Step 3: Cross multiply
    10,661.62x = 15,985.58 × 4,425.93
  4. Step 4: Simplify right side
    10,661.62x = 70,751,058.09
  5. Step 5: Solve for x
    x = 70,751,058.09/10,661.62
  6. Step 6: Final answer
    x = 6,636.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.