Home / 12,101.49-18,155.88-4,309.29

Finding the Fourth Proportional to 12,101.49, 18,155.88 and 4,309.29

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Solution

The fourth proportional to 12,101.49, 18,155.88 and 4,309.29 is: 6,465.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101.49 : 18,155.88 = 4,309.29 : x
  2. Step 2: Convert to fraction form
    12,101.49/18,155.88 = 4,309.29/x
  3. Step 3: Cross multiply
    12,101.49x = 18,155.88 × 4,309.29
  4. Step 4: Simplify right side
    12,101.49x = 78,238,952.13
  5. Step 5: Solve for x
    x = 78,238,952.13/12,101.49
  6. Step 6: Final answer
    x = 6,465.23

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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.