Home / 10,019.55-13,820.94-6,616.59

Finding the Fourth Proportional to 10,019.55, 13,820.94 and 6,616.59

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Solution

The fourth proportional to 10,019.55, 13,820.94 and 6,616.59 is: 9,126.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,019.55 : 13,820.94 = 6,616.59 : x
  2. Step 2: Convert to fraction form
    10,019.55/13,820.94 = 6,616.59/x
  3. Step 3: Cross multiply
    10,019.55x = 13,820.94 × 6,616.59
  4. Step 4: Simplify right side
    10,019.55x = 91,447,450.87
  5. Step 5: Solve for x
    x = 91,447,450.87/10,019.55
  6. Step 6: Final answer
    x = 9,126.90

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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.