Home / 13,522.95-20,280.78-6,123.60

Finding the Fourth Proportional to 13,522.95, 20,280.78 and 6,123.60

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Solution

The fourth proportional to 13,522.95, 20,280.78 and 6,123.60 is: 9,183.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,522.95 : 20,280.78 = 6,123.60 : x
  2. Step 2: Convert to fraction form
    13,522.95/20,280.78 = 6,123.60/x
  3. Step 3: Cross multiply
    13,522.95x = 20,280.78 × 6,123.60
  4. Step 4: Simplify right side
    13,522.95x = 124,191,384.41
  5. Step 5: Solve for x
    x = 124,191,384.41/13,522.95
  6. Step 6: Final answer
    x = 9,183.75

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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.