Home / 12,217.58-18,331.84-7,023.45

Finding the Fourth Proportional to 12,217.58, 18,331.84 and 7,023.45

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Solution

The fourth proportional to 12,217.58, 18,331.84 and 7,023.45 is: 10,538.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.58 : 18,331.84 = 7,023.45 : x
  2. Step 2: Convert to fraction form
    12,217.58/18,331.84 = 7,023.45/x
  3. Step 3: Cross multiply
    12,217.58x = 18,331.84 × 7,023.45
  4. Step 4: Simplify right side
    12,217.58x = 128,752,772.36
  5. Step 5: Solve for x
    x = 128,752,772.36/12,217.58
  6. Step 6: Final answer
    x = 10,538.32

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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.