Home / 12,132.95-18,197.39-3,365.51

Finding the Fourth Proportional to 12,132.95, 18,197.39 and 3,365.51

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Solution

The fourth proportional to 12,132.95, 18,197.39 and 3,365.51 is: 5,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.95 : 18,197.39 = 3,365.51 : x
  2. Step 2: Convert to fraction form
    12,132.95/18,197.39 = 3,365.51/x
  3. Step 3: Cross multiply
    12,132.95x = 18,197.39 × 3,365.51
  4. Step 4: Simplify right side
    12,132.95x = 61,243,415.45
  5. Step 5: Solve for x
    x = 61,243,415.45/12,132.95
  6. Step 6: Final answer
    x = 5,047.70

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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.