Home / 9,816.21-13,545.99-5,339.97

Finding the Fourth Proportional to 9,816.21, 13,545.99 and 5,339.97

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Solution

The fourth proportional to 9,816.21, 13,545.99 and 5,339.97 is: 7,368.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,816.21 : 13,545.99 = 5,339.97 : x
  2. Step 2: Convert to fraction form
    9,816.21/13,545.99 = 5,339.97/x
  3. Step 3: Cross multiply
    9,816.21x = 13,545.99 × 5,339.97
  4. Step 4: Simplify right side
    9,816.21x = 72,335,180.22
  5. Step 5: Solve for x
    x = 72,335,180.22/9,816.21
  6. Step 6: Final answer
    x = 7,368.95

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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.