Home / 10,667.91-14,712.14-6,689.43

Finding the Fourth Proportional to 10,667.91, 14,712.14 and 6,689.43

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Solution

The fourth proportional to 10,667.91, 14,712.14 and 6,689.43 is: 9,225.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,667.91 : 14,712.14 = 6,689.43 : x
  2. Step 2: Convert to fraction form
    10,667.91/14,712.14 = 6,689.43/x
  3. Step 3: Cross multiply
    10,667.91x = 14,712.14 × 6,689.43
  4. Step 4: Simplify right side
    10,667.91x = 98,415,797.23
  5. Step 5: Solve for x
    x = 98,415,797.23/10,667.91
  6. Step 6: Final answer
    x = 9,225.41

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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.