Home / 10,217.70-14,109.65-6,447.56

Finding the Fourth Proportional to 10,217.70, 14,109.65 and 6,447.56

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Solution

The fourth proportional to 10,217.70, 14,109.65 and 6,447.56 is: 8,903.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,217.70 : 14,109.65 = 6,447.56 : x
  2. Step 2: Convert to fraction form
    10,217.70/14,109.65 = 6,447.56/x
  3. Step 3: Cross multiply
    10,217.70x = 14,109.65 × 6,447.56
  4. Step 4: Simplify right side
    10,217.70x = 90,972,712.17
  5. Step 5: Solve for x
    x = 90,972,712.17/10,217.70
  6. Step 6: Final answer
    x = 8,903.44

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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.