Home / 10,214.88-15,319.59-2,817.60

Finding the Fourth Proportional to 10,214.88, 15,319.59 and 2,817.60

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Solution

The fourth proportional to 10,214.88, 15,319.59 and 2,817.60 is: 4,225.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,214.88 : 15,319.59 = 2,817.60 : x
  2. Step 2: Convert to fraction form
    10,214.88/15,319.59 = 2,817.60/x
  3. Step 3: Cross multiply
    10,214.88x = 15,319.59 × 2,817.60
  4. Step 4: Simplify right side
    10,214.88x = 43,164,476.78
  5. Step 5: Solve for x
    x = 43,164,476.78/10,214.88
  6. Step 6: Final answer
    x = 4,225.65

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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.