Home / 13,275.59-19,905.71-7,944.08

Finding the Fourth Proportional to 13,275.59, 19,905.71 and 7,944.08

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Solution

The fourth proportional to 13,275.59, 19,905.71 and 7,944.08 is: 11,911.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.59 : 19,905.71 = 7,944.08 : x
  2. Step 2: Convert to fraction form
    13,275.59/19,905.71 = 7,944.08/x
  3. Step 3: Cross multiply
    13,275.59x = 19,905.71 × 7,944.08
  4. Step 4: Simplify right side
    13,275.59x = 158,132,413.45
  5. Step 5: Solve for x
    x = 158,132,413.45/13,275.59
  6. Step 6: Final answer
    x = 11,911.52

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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.