Home / 12,346.24-18,513.71-5,322.90

Finding the Fourth Proportional to 12,346.24, 18,513.71 and 5,322.90

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Solution

The fourth proportional to 12,346.24, 18,513.71 and 5,322.90 is: 7,981.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,346.24 : 18,513.71 = 5,322.90 : x
  2. Step 2: Convert to fraction form
    12,346.24/18,513.71 = 5,322.90/x
  3. Step 3: Cross multiply
    12,346.24x = 18,513.71 × 5,322.90
  4. Step 4: Simplify right side
    12,346.24x = 98,546,626.96
  5. Step 5: Solve for x
    x = 98,546,626.96/12,346.24
  6. Step 6: Final answer
    x = 7,981.91

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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.