Home / 8,988.27-13,486.59-3,439.79

Finding the Fourth Proportional to 8,988.27, 13,486.59 and 3,439.79

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Solution

The fourth proportional to 8,988.27, 13,486.59 and 3,439.79 is: 5,161.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.27 : 13,486.59 = 3,439.79 : x
  2. Step 2: Convert to fraction form
    8,988.27/13,486.59 = 3,439.79/x
  3. Step 3: Cross multiply
    8,988.27x = 13,486.59 × 3,439.79
  4. Step 4: Simplify right side
    8,988.27x = 46,390,952.78
  5. Step 5: Solve for x
    x = 46,390,952.78/8,988.27
  6. Step 6: Final answer
    x = 5,161.28

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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.