Home / 11,298.29-15,591.18-6,821.31

Finding the Fourth Proportional to 11,298.29, 15,591.18 and 6,821.31

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Solution

The fourth proportional to 11,298.29, 15,591.18 and 6,821.31 is: 9,413.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,298.29 : 15,591.18 = 6,821.31 : x
  2. Step 2: Convert to fraction form
    11,298.29/15,591.18 = 6,821.31/x
  3. Step 3: Cross multiply
    11,298.29x = 15,591.18 × 6,821.31
  4. Step 4: Simplify right side
    11,298.29x = 106,352,356.09
  5. Step 5: Solve for x
    x = 106,352,356.09/11,298.29
  6. Step 6: Final answer
    x = 9,413.14

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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.