Home / 12,515.65-18,794.94-11,113.24

Finding the Fourth Proportional to 12,515.65, 18,794.94 and 11,113.24

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Solution

The fourth proportional to 12,515.65, 18,794.94 and 11,113.24 is: 16,688.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.65 : 18,794.94 = 11,113.24 : x
  2. Step 2: Convert to fraction form
    12,515.65/18,794.94 = 11,113.24/x
  3. Step 3: Cross multiply
    12,515.65x = 18,794.94 × 11,113.24
  4. Step 4: Simplify right side
    12,515.65x = 208,872,679.01
  5. Step 5: Solve for x
    x = 208,872,679.01/12,515.65
  6. Step 6: Final answer
    x = 16,688.92

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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.