Home / 12,054.39-18,101.64-8,130.92

Finding the Fourth Proportional to 12,054.39, 18,101.64 and 8,130.92

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Solution

The fourth proportional to 12,054.39, 18,101.64 and 8,130.92 is: 12,209.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,054.39 : 18,101.64 = 8,130.92 : x
  2. Step 2: Convert to fraction form
    12,054.39/18,101.64 = 8,130.92/x
  3. Step 3: Cross multiply
    12,054.39x = 18,101.64 × 8,130.92
  4. Step 4: Simplify right side
    12,054.39x = 147,182,926.69
  5. Step 5: Solve for x
    x = 147,182,926.69/12,054.39
  6. Step 6: Final answer
    x = 12,209.91

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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.