Home / 11,354.28-15,667.68-6,317.70

Finding the Fourth Proportional to 11,354.28, 15,667.68 and 6,317.70

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Solution

The fourth proportional to 11,354.28, 15,667.68 and 6,317.70 is: 8,717.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,354.28 : 15,667.68 = 6,317.70 : x
  2. Step 2: Convert to fraction form
    11,354.28/15,667.68 = 6,317.70/x
  3. Step 3: Cross multiply
    11,354.28x = 15,667.68 × 6,317.70
  4. Step 4: Simplify right side
    11,354.28x = 98,983,701.94
  5. Step 5: Solve for x
    x = 98,983,701.94/11,354.28
  6. Step 6: Final answer
    x = 8,717.74

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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.