Home / 15,928.48-21,981.81-9,552.88

Finding the Fourth Proportional to 15,928.48, 21,981.81 and 9,552.88

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Solution

The fourth proportional to 15,928.48, 21,981.81 and 9,552.88 is: 13,183.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,928.48 : 21,981.81 = 9,552.88 : x
  2. Step 2: Convert to fraction form
    15,928.48/21,981.81 = 9,552.88/x
  3. Step 3: Cross multiply
    15,928.48x = 21,981.81 × 9,552.88
  4. Step 4: Simplify right side
    15,928.48x = 209,989,593.11
  5. Step 5: Solve for x
    x = 209,989,593.11/15,928.48
  6. Step 6: Final answer
    x = 13,183.28

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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.