Home / 12,255.29-18,386.18-6,410.33

Finding the Fourth Proportional to 12,255.29, 18,386.18 and 6,410.33

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Solution

The fourth proportional to 12,255.29, 18,386.18 and 6,410.33 is: 9,617.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.29 : 18,386.18 = 6,410.33 : x
  2. Step 2: Convert to fraction form
    12,255.29/18,386.18 = 6,410.33/x
  3. Step 3: Cross multiply
    12,255.29x = 18,386.18 × 6,410.33
  4. Step 4: Simplify right side
    12,255.29x = 117,861,449.19
  5. Step 5: Solve for x
    x = 117,861,449.19/12,255.29
  6. Step 6: Final answer
    x = 9,617.19

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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.