Home / 12,746.36-19,119.50-3,387.32

Finding the Fourth Proportional to 12,746.36, 19,119.50 and 3,387.32

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Solution

The fourth proportional to 12,746.36, 19,119.50 and 3,387.32 is: 5,080.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,746.36 : 19,119.50 = 3,387.32 : x
  2. Step 2: Convert to fraction form
    12,746.36/19,119.50 = 3,387.32/x
  3. Step 3: Cross multiply
    12,746.36x = 19,119.50 × 3,387.32
  4. Step 4: Simplify right side
    12,746.36x = 64,763,864.74
  5. Step 5: Solve for x
    x = 64,763,864.74/12,746.36
  6. Step 6: Final answer
    x = 5,080.97

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Double scale
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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.