Home / 15,985.65-22,060.23-8,912.53

Finding the Fourth Proportional to 15,985.65, 22,060.23 and 8,912.53

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Solution

The fourth proportional to 15,985.65, 22,060.23 and 8,912.53 is: 12,299.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,985.65 : 22,060.23 = 8,912.53 : x
  2. Step 2: Convert to fraction form
    15,985.65/22,060.23 = 8,912.53/x
  3. Step 3: Cross multiply
    15,985.65x = 22,060.23 × 8,912.53
  4. Step 4: Simplify right side
    15,985.65x = 196,612,351.38
  5. Step 5: Solve for x
    x = 196,612,351.38/15,985.65
  6. Step 6: Final answer
    x = 12,299.30

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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.