Home / 12,610.40-18,912.55-5,586.53

Finding the Fourth Proportional to 12,610.40, 18,912.55 and 5,586.53

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Solution

The fourth proportional to 12,610.40, 18,912.55 and 5,586.53 is: 8,378.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.40 : 18,912.55 = 5,586.53 : x
  2. Step 2: Convert to fraction form
    12,610.40/18,912.55 = 5,586.53/x
  3. Step 3: Cross multiply
    12,610.40x = 18,912.55 × 5,586.53
  4. Step 4: Simplify right side
    12,610.40x = 105,655,527.95
  5. Step 5: Solve for x
    x = 105,655,527.95/12,610.40
  6. Step 6: Final answer
    x = 8,378.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.