Home / 12,352.08-18,522.53-5,328.78

Finding the Fourth Proportional to 12,352.08, 18,522.53 and 5,328.78

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Solution

The fourth proportional to 12,352.08, 18,522.53 and 5,328.78 is: 7,990.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,352.08 : 18,522.53 = 5,328.78 : x
  2. Step 2: Convert to fraction form
    12,352.08/18,522.53 = 5,328.78/x
  3. Step 3: Cross multiply
    12,352.08x = 18,522.53 × 5,328.78
  4. Step 4: Simplify right side
    12,352.08x = 98,702,487.41
  5. Step 5: Solve for x
    x = 98,702,487.41/12,352.08
  6. Step 6: Final answer
    x = 7,990.76

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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.