Home / 15,741.64-21,724.08-8,667.96

Finding the Fourth Proportional to 15,741.64, 21,724.08 and 8,667.96

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Solution

The fourth proportional to 15,741.64, 21,724.08 and 8,667.96 is: 11,962.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,741.64 : 21,724.08 = 8,667.96 : x
  2. Step 2: Convert to fraction form
    15,741.64/21,724.08 = 8,667.96/x
  3. Step 3: Cross multiply
    15,741.64x = 21,724.08 × 8,667.96
  4. Step 4: Simplify right side
    15,741.64x = 188,303,456.48
  5. Step 5: Solve for x
    x = 188,303,456.48/15,741.64
  6. Step 6: Final answer
    x = 11,962.12

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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.