Home / 10,144.40-13,999.88-5,668.47

Finding the Fourth Proportional to 10,144.40, 13,999.88 and 5,668.47

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Solution

The fourth proportional to 10,144.40, 13,999.88 and 5,668.47 is: 7,822.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,144.40 : 13,999.88 = 5,668.47 : x
  2. Step 2: Convert to fraction form
    10,144.40/13,999.88 = 5,668.47/x
  3. Step 3: Cross multiply
    10,144.40x = 13,999.88 × 5,668.47
  4. Step 4: Simplify right side
    10,144.40x = 79,357,913.95
  5. Step 5: Solve for x
    x = 79,357,913.95/10,144.40
  6. Step 6: Final answer
    x = 7,822.83

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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.