Home / 12,838.08-19,257.15-3,478.16

Finding the Fourth Proportional to 12,838.08, 19,257.15 and 3,478.16

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Solution

The fourth proportional to 12,838.08, 19,257.15 and 3,478.16 is: 5,217.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,838.08 : 19,257.15 = 3,478.16 : x
  2. Step 2: Convert to fraction form
    12,838.08/19,257.15 = 3,478.16/x
  3. Step 3: Cross multiply
    12,838.08x = 19,257.15 × 3,478.16
  4. Step 4: Simplify right side
    12,838.08x = 66,979,448.84
  5. Step 5: Solve for x
    x = 66,979,448.84/12,838.08
  6. Step 6: Final answer
    x = 5,217.25

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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.