Home / 13,366.88-18,433.68-9,971.39

Finding the Fourth Proportional to 13,366.88, 18,433.68 and 9,971.39

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Solution

The fourth proportional to 13,366.88, 18,433.68 and 9,971.39 is: 13,751.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.88 : 18,433.68 = 9,971.39 : x
  2. Step 2: Convert to fraction form
    13,366.88/18,433.68 = 9,971.39/x
  3. Step 3: Cross multiply
    13,366.88x = 18,433.68 × 9,971.39
  4. Step 4: Simplify right side
    13,366.88x = 183,809,412.42
  5. Step 5: Solve for x
    x = 183,809,412.42/13,366.88
  6. Step 6: Final answer
    x = 13,751.11

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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.