Home / 12,492.13-18,738.19-3,258.13

Finding the Fourth Proportional to 12,492.13, 18,738.19 and 3,258.13

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Solution

The fourth proportional to 12,492.13, 18,738.19 and 3,258.13 is: 4,887.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492.13 : 18,738.19 = 3,258.13 : x
  2. Step 2: Convert to fraction form
    12,492.13/18,738.19 = 3,258.13/x
  3. Step 3: Cross multiply
    12,492.13x = 18,738.19 × 3,258.13
  4. Step 4: Simplify right side
    12,492.13x = 61,051,458.98
  5. Step 5: Solve for x
    x = 61,051,458.98/12,492.13
  6. Step 6: Final answer
    x = 4,887.19

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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.