Home / 12,216.60-18,289.25-7,522.53

Finding the Fourth Proportional to 12,216.60, 18,289.25 and 7,522.53

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Solution

The fourth proportional to 12,216.60, 18,289.25 and 7,522.53 is: 11,261.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.60 : 18,289.25 = 7,522.53 : x
  2. Step 2: Convert to fraction form
    12,216.60/18,289.25 = 7,522.53/x
  3. Step 3: Cross multiply
    12,216.60x = 18,289.25 × 7,522.53
  4. Step 4: Simplify right side
    12,216.60x = 137,581,394.19
  5. Step 5: Solve for x
    x = 137,581,394.19/12,216.60
  6. Step 6: Final answer
    x = 11,261.84

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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.