Home / 10,221.69-14,104.80-5,744.40

Finding the Fourth Proportional to 10,221.69, 14,104.80 and 5,744.40

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Solution

The fourth proportional to 10,221.69, 14,104.80 and 5,744.40 is: 7,926.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.69 : 14,104.80 = 5,744.40 : x
  2. Step 2: Convert to fraction form
    10,221.69/14,104.80 = 5,744.40/x
  3. Step 3: Cross multiply
    10,221.69x = 14,104.80 × 5,744.40
  4. Step 4: Simplify right side
    10,221.69x = 81,023,613.12
  5. Step 5: Solve for x
    x = 81,023,613.12/10,221.69
  6. Step 6: Final answer
    x = 7,926.64

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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.