Home / 12,472.36-17,212.21-6,807.47

Finding the Fourth Proportional to 12,472.36, 17,212.21 and 6,807.47

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Solution

The fourth proportional to 12,472.36, 17,212.21 and 6,807.47 is: 9,394.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.36 : 17,212.21 = 6,807.47 : x
  2. Step 2: Convert to fraction form
    12,472.36/17,212.21 = 6,807.47/x
  3. Step 3: Cross multiply
    12,472.36x = 17,212.21 × 6,807.47
  4. Step 4: Simplify right side
    12,472.36x = 117,171,500.13
  5. Step 5: Solve for x
    x = 117,171,500.13/12,472.36
  6. Step 6: Final answer
    x = 9,394.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.