Home / 13,326.12-19,988.37-3,966.17

Finding the Fourth Proportional to 13,326.12, 19,988.37 and 3,966.17

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Solution

The fourth proportional to 13,326.12, 19,988.37 and 3,966.17 is: 5,949.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.12 : 19,988.37 = 3,966.17 : x
  2. Step 2: Convert to fraction form
    13,326.12/19,988.37 = 3,966.17/x
  3. Step 3: Cross multiply
    13,326.12x = 19,988.37 × 3,966.17
  4. Step 4: Simplify right side
    13,326.12x = 79,277,173.50
  5. Step 5: Solve for x
    x = 79,277,173.50/13,326.12
  6. Step 6: Final answer
    x = 5,949.01

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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.