Home / 13,152.16-19,728.08-3,917.44

Finding the Fourth Proportional to 13,152.16, 19,728.08 and 3,917.44

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Solution

The fourth proportional to 13,152.16, 19,728.08 and 3,917.44 is: 5,876.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.16 : 19,728.08 = 3,917.44 : x
  2. Step 2: Convert to fraction form
    13,152.16/19,728.08 = 3,917.44/x
  3. Step 3: Cross multiply
    13,152.16x = 19,728.08 × 3,917.44
  4. Step 4: Simplify right side
    13,152.16x = 77,283,569.72
  5. Step 5: Solve for x
    x = 77,283,569.72/13,152.16
  6. Step 6: Final answer
    x = 5,876.11

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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.