Home / 15,986.04-22,060.74-8,912.30

Finding the Fourth Proportional to 15,986.04, 22,060.74 and 8,912.30

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Solution

The fourth proportional to 15,986.04, 22,060.74 and 8,912.30 is: 12,298.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.04 : 22,060.74 = 8,912.30 : x
  2. Step 2: Convert to fraction form
    15,986.04/22,060.74 = 8,912.30/x
  3. Step 3: Cross multiply
    15,986.04x = 22,060.74 × 8,912.30
  4. Step 4: Simplify right side
    15,986.04x = 196,611,933.10
  5. Step 5: Solve for x
    x = 196,611,933.10/15,986.04
  6. Step 6: Final answer
    x = 12,298.98

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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.