Home / 13,213.12-19,809.06-9,042.88

Finding the Fourth Proportional to 13,213.12, 19,809.06 and 9,042.88

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Solution

The fourth proportional to 13,213.12, 19,809.06 and 9,042.88 is: 13,557.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.12 : 19,809.06 = 9,042.88 : x
  2. Step 2: Convert to fraction form
    13,213.12/19,809.06 = 9,042.88/x
  3. Step 3: Cross multiply
    13,213.12x = 19,809.06 × 9,042.88
  4. Step 4: Simplify right side
    13,213.12x = 179,130,952.49
  5. Step 5: Solve for x
    x = 179,130,952.49/13,213.12
  6. Step 6: Final answer
    x = 13,557.05

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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.