Home / 13,583.30-20,363.18-5,257.58

Finding the Fourth Proportional to 13,583.30, 20,363.18 and 5,257.58

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Solution

The fourth proportional to 13,583.30, 20,363.18 and 5,257.58 is: 7,881.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.30 : 20,363.18 = 5,257.58 : x
  2. Step 2: Convert to fraction form
    13,583.30/20,363.18 = 5,257.58/x
  3. Step 3: Cross multiply
    13,583.30x = 20,363.18 × 5,257.58
  4. Step 4: Simplify right side
    13,583.30x = 107,060,919.80
  5. Step 5: Solve for x
    x = 107,060,919.80/13,583.30
  6. Step 6: Final answer
    x = 7,881.81

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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.