Home / 12,140.16-18,207.36-3,376.32

Finding the Fourth Proportional to 12,140.16, 18,207.36 and 3,376.32

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Solution

The fourth proportional to 12,140.16, 18,207.36 and 3,376.32 is: 5,063.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140.16 : 18,207.36 = 3,376.32 : x
  2. Step 2: Convert to fraction form
    12,140.16/18,207.36 = 3,376.32/x
  3. Step 3: Cross multiply
    12,140.16x = 18,207.36 × 3,376.32
  4. Step 4: Simplify right side
    12,140.16x = 61,473,873.72
  5. Step 5: Solve for x
    x = 61,473,873.72/12,140.16
  6. Step 6: Final answer
    x = 5,063.68

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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.