Home / 15,984.78-22,058.50-8,815.00

Finding the Fourth Proportional to 15,984.78, 22,058.50 and 8,815.00

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Solution

The fourth proportional to 15,984.78, 22,058.50 and 8,815.00 is: 12,164.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,984.78 : 22,058.50 = 8,815.00 : x
  2. Step 2: Convert to fraction form
    15,984.78/22,058.50 = 8,815.00/x
  3. Step 3: Cross multiply
    15,984.78x = 22,058.50 × 8,815.00
  4. Step 4: Simplify right side
    15,984.78x = 194,445,703.72
  5. Step 5: Solve for x
    x = 194,445,703.72/15,984.78
  6. Step 6: Final answer
    x = 12,164.42

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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.