Home / 12,530.10-18,795.15-11,579.70

Finding the Fourth Proportional to 12,530.10, 18,795.15 and 11,579.70

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Solution

The fourth proportional to 12,530.10, 18,795.15 and 11,579.70 is: 17,369.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.10 : 18,795.15 = 11,579.70 : x
  2. Step 2: Convert to fraction form
    12,530.10/18,795.15 = 11,579.70/x
  3. Step 3: Cross multiply
    12,530.10x = 18,795.15 × 11,579.70
  4. Step 4: Simplify right side
    12,530.10x = 217,642,198.46
  5. Step 5: Solve for x
    x = 217,642,198.46/12,530.10
  6. Step 6: Final answer
    x = 17,369.55

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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.