Home / 15,895.92-21,935.52-8,822.16

Finding the Fourth Proportional to 15,895.92, 21,935.52 and 8,822.16

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Solution

The fourth proportional to 15,895.92, 21,935.52 and 8,822.16 is: 12,174.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,895.92 : 21,935.52 = 8,822.16 : x
  2. Step 2: Convert to fraction form
    15,895.92/21,935.52 = 8,822.16/x
  3. Step 3: Cross multiply
    15,895.92x = 21,935.52 × 8,822.16
  4. Step 4: Simplify right side
    15,895.92x = 193,518,667.12
  5. Step 5: Solve for x
    x = 193,518,667.12/15,895.92
  6. Step 6: Final answer
    x = 12,174.11

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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.