Home / 10,422.48-15,636.63-4,186.87

Finding the Fourth Proportional to 10,422.48, 15,636.63 and 4,186.87

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Solution

The fourth proportional to 10,422.48, 15,636.63 and 4,186.87 is: 6,281.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422.48 : 15,636.63 = 4,186.87 : x
  2. Step 2: Convert to fraction form
    10,422.48/15,636.63 = 4,186.87/x
  3. Step 3: Cross multiply
    10,422.48x = 15,636.63 × 4,186.87
  4. Step 4: Simplify right side
    10,422.48x = 65,468,556.59
  5. Step 5: Solve for x
    x = 65,468,556.59/10,422.48
  6. Step 6: Final answer
    x = 6,281.48

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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.