Home / 13,522.77-20,285.78-4,758.57

Finding the Fourth Proportional to 13,522.77, 20,285.78 and 4,758.57

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Solution

The fourth proportional to 13,522.77, 20,285.78 and 4,758.57 is: 7,138.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,522.77 : 20,285.78 = 4,758.57 : x
  2. Step 2: Convert to fraction form
    13,522.77/20,285.78 = 4,758.57/x
  3. Step 3: Cross multiply
    13,522.77x = 20,285.78 × 4,758.57
  4. Step 4: Simplify right side
    13,522.77x = 96,531,280.34
  5. Step 5: Solve for x
    x = 96,531,280.34/13,522.77
  6. Step 6: Final answer
    x = 7,138.43

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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.