Home / 13,522.50-20,283.75-4,288.50

Finding the Fourth Proportional to 13,522.50, 20,283.75 and 4,288.50

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Solution

The fourth proportional to 13,522.50, 20,283.75 and 4,288.50 is: 6,432.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,522.50 : 20,283.75 = 4,288.50 : x
  2. Step 2: Convert to fraction form
    13,522.50/20,283.75 = 4,288.50/x
  3. Step 3: Cross multiply
    13,522.50x = 20,283.75 × 4,288.50
  4. Step 4: Simplify right side
    13,522.50x = 86,986,861.88
  5. Step 5: Solve for x
    x = 86,986,861.88/13,522.50
  6. Step 6: Final answer
    x = 6,432.75

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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.