Home / 15,925.52-21,977.90-8,852

Finding the Fourth Proportional to 15,925.52, 21,977.90 and 8,852

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Solution

The fourth proportional to 15,925.52, 21,977.90 and 8,852 is: 12,216.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,925.52 : 21,977.90 = 8,852 : x
  2. Step 2: Convert to fraction form
    15,925.52/21,977.90 = 8,852/x
  3. Step 3: Cross multiply
    15,925.52x = 21,977.90 × 8,852
  4. Step 4: Simplify right side
    15,925.52x = 194,548,370.80
  5. Step 5: Solve for x
    x = 194,548,370.80/15,925.52
  6. Step 6: Final answer
    x = 12,216.14

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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.