Home / 15,932.55-21,986.94-8,858.98

Finding the Fourth Proportional to 15,932.55, 21,986.94 and 8,858.98

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Solution

The fourth proportional to 15,932.55, 21,986.94 and 8,858.98 is: 12,225.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,932.55 : 21,986.94 = 8,858.98 : x
  2. Step 2: Convert to fraction form
    15,932.55/21,986.94 = 8,858.98/x
  3. Step 3: Cross multiply
    15,932.55x = 21,986.94 × 8,858.98
  4. Step 4: Simplify right side
    15,932.55x = 194,781,861.72
  5. Step 5: Solve for x
    x = 194,781,861.72/15,932.55
  6. Step 6: Final answer
    x = 12,225.40

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1.5x scale

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.