Home / 12,507.12-18,765.91-5,483.51

Finding the Fourth Proportional to 12,507.12, 18,765.91 and 5,483.51

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Solution

The fourth proportional to 12,507.12, 18,765.91 and 5,483.51 is: 8,227.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507.12 : 18,765.91 = 5,483.51 : x
  2. Step 2: Convert to fraction form
    12,507.12/18,765.91 = 5,483.51/x
  3. Step 3: Cross multiply
    12,507.12x = 18,765.91 × 5,483.51
  4. Step 4: Simplify right side
    12,507.12x = 102,902,961.31
  5. Step 5: Solve for x
    x = 102,902,961.31/12,507.12
  6. Step 6: Final answer
    x = 8,227.55

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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.