Home / 10,667.64-14,719.36-6,189.76

Finding the Fourth Proportional to 10,667.64, 14,719.36 and 6,189.76

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Solution

The fourth proportional to 10,667.64, 14,719.36 and 6,189.76 is: 8,540.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,667.64 : 14,719.36 = 6,189.76 : x
  2. Step 2: Convert to fraction form
    10,667.64/14,719.36 = 6,189.76/x
  3. Step 3: Cross multiply
    10,667.64x = 14,719.36 × 6,189.76
  4. Step 4: Simplify right side
    10,667.64x = 91,109,305.75
  5. Step 5: Solve for x
    x = 91,109,305.75/10,667.64
  6. Step 6: Final answer
    x = 8,540.72

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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.