Home / 15,848.11-21,870.37-8,677.99

Finding the Fourth Proportional to 15,848.11, 21,870.37 and 8,677.99

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Solution

The fourth proportional to 15,848.11, 21,870.37 and 8,677.99 is: 11,975.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,848.11 : 21,870.37 = 8,677.99 : x
  2. Step 2: Convert to fraction form
    15,848.11/21,870.37 = 8,677.99/x
  3. Step 3: Cross multiply
    15,848.11x = 21,870.37 × 8,677.99
  4. Step 4: Simplify right side
    15,848.11x = 189,790,852.16
  5. Step 5: Solve for x
    x = 189,790,852.16/15,848.11
  6. Step 6: Final answer
    x = 11,975.61

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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.