Home / 9,686.78-14,530.11-3,112.98

Finding the Fourth Proportional to 9,686.78, 14,530.11 and 3,112.98

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Solution

The fourth proportional to 9,686.78, 14,530.11 and 3,112.98 is: 4,669.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,686.78 : 14,530.11 = 3,112.98 : x
  2. Step 2: Convert to fraction form
    9,686.78/14,530.11 = 3,112.98/x
  3. Step 3: Cross multiply
    9,686.78x = 14,530.11 × 3,112.98
  4. Step 4: Simplify right side
    9,686.78x = 45,231,966.15
  5. Step 5: Solve for x
    x = 45,231,966.15/9,686.78
  6. Step 6: Final answer
    x = 4,669.45

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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.