Home / 9,986.40-14,989.20-5,061.60

Finding the Fourth Proportional to 9,986.40, 14,989.20 and 5,061.60

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Solution

The fourth proportional to 9,986.40, 14,989.20 and 5,061.60 is: 7,597.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986.40 : 14,989.20 = 5,061.60 : x
  2. Step 2: Convert to fraction form
    9,986.40/14,989.20 = 5,061.60/x
  3. Step 3: Cross multiply
    9,986.40x = 14,989.20 × 5,061.60
  4. Step 4: Simplify right side
    9,986.40x = 75,869,334.72
  5. Step 5: Solve for x
    x = 75,869,334.72/9,986.40
  6. Step 6: Final answer
    x = 7,597.27

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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.