Home / 13,185.17-19,768.84-6,938.55

Finding the Fourth Proportional to 13,185.17, 19,768.84 and 6,938.55

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Solution

The fourth proportional to 13,185.17, 19,768.84 and 6,938.55 is: 10,403.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.17 : 19,768.84 = 6,938.55 : x
  2. Step 2: Convert to fraction form
    13,185.17/19,768.84 = 6,938.55/x
  3. Step 3: Cross multiply
    13,185.17x = 19,768.84 × 6,938.55
  4. Step 4: Simplify right side
    13,185.17x = 137,167,084.78
  5. Step 5: Solve for x
    x = 137,167,084.78/13,185.17
  6. Step 6: Final answer
    x = 10,403.13

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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.