Home / 15,848.89-21,872.94-8,775.31

Finding the Fourth Proportional to 15,848.89, 21,872.94 and 8,775.31

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Solution

The fourth proportional to 15,848.89, 21,872.94 and 8,775.31 is: 12,110.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,848.89 : 21,872.94 = 8,775.31 : x
  2. Step 2: Convert to fraction form
    15,848.89/21,872.94 = 8,775.31/x
  3. Step 3: Cross multiply
    15,848.89x = 21,872.94 × 8,775.31
  4. Step 4: Simplify right side
    15,848.89x = 191,941,829.11
  5. Step 5: Solve for x
    x = 191,941,829.11/15,848.89
  6. Step 6: Final answer
    x = 12,110.74

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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.