Home / 12,090.04-18,130.95-4,190.71

Finding the Fourth Proportional to 12,090.04, 18,130.95 and 4,190.71

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Solution

The fourth proportional to 12,090.04, 18,130.95 and 4,190.71 is: 6,284.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.04 : 18,130.95 = 4,190.71 : x
  2. Step 2: Convert to fraction form
    12,090.04/18,130.95 = 4,190.71/x
  3. Step 3: Cross multiply
    12,090.04x = 18,130.95 × 4,190.71
  4. Step 4: Simplify right side
    12,090.04x = 75,981,553.47
  5. Step 5: Solve for x
    x = 75,981,553.47/12,090.04
  6. Step 6: Final answer
    x = 6,284.64

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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.