Home / 13,233.40-18,265.98-8,519.20

Finding the Fourth Proportional to 13,233.40, 18,265.98 and 8,519.20

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Solution

The fourth proportional to 13,233.40, 18,265.98 and 8,519.20 is: 11,759.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,233.40 : 18,265.98 = 8,519.20 : x
  2. Step 2: Convert to fraction form
    13,233.40/18,265.98 = 8,519.20/x
  3. Step 3: Cross multiply
    13,233.40x = 18,265.98 × 8,519.20
  4. Step 4: Simplify right side
    13,233.40x = 155,611,536.82
  5. Step 5: Solve for x
    x = 155,611,536.82/13,233.40
  6. Step 6: Final answer
    x = 11,759.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.