Home / 13,036.88-17,984.22-8,316.20

Finding the Fourth Proportional to 13,036.88, 17,984.22 and 8,316.20

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Solution

The fourth proportional to 13,036.88, 17,984.22 and 8,316.20 is: 11,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,036.88 : 17,984.22 = 8,316.20 : x
  2. Step 2: Convert to fraction form
    13,036.88/17,984.22 = 8,316.20/x
  3. Step 3: Cross multiply
    13,036.88x = 17,984.22 × 8,316.20
  4. Step 4: Simplify right side
    13,036.88x = 149,560,370.36
  5. Step 5: Solve for x
    x = 149,560,370.36/13,036.88
  6. Step 6: Final answer
    x = 11,472.10

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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.