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Finding the Fourth Proportional to 13,266.56, 19,894.94 and 3,904.16

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Solution

The fourth proportional to 13,266.56, 19,894.94 and 3,904.16 is: 5,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.56 : 19,894.94 = 3,904.16 : x
  2. Step 2: Convert to fraction form
    13,266.56/19,894.94 = 3,904.16/x
  3. Step 3: Cross multiply
    13,266.56x = 19,894.94 × 3,904.16
  4. Step 4: Simplify right side
    13,266.56x = 77,673,028.95
  5. Step 5: Solve for x
    x = 77,673,028.95/13,266.56
  6. Step 6: Final answer
    x = 5,854.80

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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.