Home / 15,362.73-21,195.81-9,388.17

Finding the Fourth Proportional to 15,362.73, 21,195.81 and 9,388.17

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Solution

The fourth proportional to 15,362.73, 21,195.81 and 9,388.17 is: 12,952.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.73 : 21,195.81 = 9,388.17 : x
  2. Step 2: Convert to fraction form
    15,362.73/21,195.81 = 9,388.17/x
  3. Step 3: Cross multiply
    15,362.73x = 21,195.81 × 9,388.17
  4. Step 4: Simplify right side
    15,362.73x = 198,989,867.57
  5. Step 5: Solve for x
    x = 198,989,867.57/15,362.73
  6. Step 6: Final answer
    x = 12,952.77

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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.