Home / 12,478.36-18,717.18-3,244.36

Finding the Fourth Proportional to 12,478.36, 18,717.18 and 3,244.36

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Solution

The fourth proportional to 12,478.36, 18,717.18 and 3,244.36 is: 4,866.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478.36 : 18,717.18 = 3,244.36 : x
  2. Step 2: Convert to fraction form
    12,478.36/18,717.18 = 3,244.36/x
  3. Step 3: Cross multiply
    12,478.36x = 18,717.18 × 3,244.36
  4. Step 4: Simplify right side
    12,478.36x = 60,725,270.10
  5. Step 5: Solve for x
    x = 60,725,270.10/12,478.36
  6. Step 6: Final answer
    x = 4,866.45

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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.