Home / 10,221.35-15,310.56-4,948.79

Finding the Fourth Proportional to 10,221.35, 15,310.56 and 4,948.79

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Solution

The fourth proportional to 10,221.35, 15,310.56 and 4,948.79 is: 7,412.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.35 : 15,310.56 = 4,948.79 : x
  2. Step 2: Convert to fraction form
    10,221.35/15,310.56 = 4,948.79/x
  3. Step 3: Cross multiply
    10,221.35x = 15,310.56 × 4,948.79
  4. Step 4: Simplify right side
    10,221.35x = 75,768,746.22
  5. Step 5: Solve for x
    x = 75,768,746.22/10,221.35
  6. Step 6: Final answer
    x = 7,412.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.