Home / 13,283.19-19,919.93-5,487.75

Finding the Fourth Proportional to 13,283.19, 19,919.93 and 5,487.75

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Solution

The fourth proportional to 13,283.19, 19,919.93 and 5,487.75 is: 8,229.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.19 : 19,919.93 = 5,487.75 : x
  2. Step 2: Convert to fraction form
    13,283.19/19,919.93 = 5,487.75/x
  3. Step 3: Cross multiply
    13,283.19x = 19,919.93 × 5,487.75
  4. Step 4: Simplify right side
    13,283.19x = 109,315,568.42
  5. Step 5: Solve for x
    x = 109,315,568.42/13,283.19
  6. Step 6: Final answer
    x = 8,229.62

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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.