Home / 10,226.76-14,112.68-6,689.89

Finding the Fourth Proportional to 10,226.76, 14,112.68 and 6,689.89

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Solution

The fourth proportional to 10,226.76, 14,112.68 and 6,689.89 is: 9,231.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,226.76 : 14,112.68 = 6,689.89 : x
  2. Step 2: Convert to fraction form
    10,226.76/14,112.68 = 6,689.89/x
  3. Step 3: Cross multiply
    10,226.76x = 14,112.68 × 6,689.89
  4. Step 4: Simplify right side
    10,226.76x = 94,412,298.63
  5. Step 5: Solve for x
    x = 94,412,298.63/10,226.76
  6. Step 6: Final answer
    x = 9,231.89

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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.