Home / 13,151.64-19,728.48-4,386.54

Finding the Fourth Proportional to 13,151.64, 19,728.48 and 4,386.54

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Solution

The fourth proportional to 13,151.64, 19,728.48 and 4,386.54 is: 6,580.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.64 : 19,728.48 = 4,386.54 : x
  2. Step 2: Convert to fraction form
    13,151.64/19,728.48 = 4,386.54/x
  3. Step 3: Cross multiply
    13,151.64x = 19,728.48 × 4,386.54
  4. Step 4: Simplify right side
    13,151.64x = 86,539,766.66
  5. Step 5: Solve for x
    x = 86,539,766.66/13,151.64
  6. Step 6: Final answer
    x = 6,580.15

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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.