Home / 13,266.79-19,900.23-12,601.65

Finding the Fourth Proportional to 13,266.79, 19,900.23 and 12,601.65

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Solution

The fourth proportional to 13,266.79, 19,900.23 and 12,601.65 is: 18,902.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.79 : 19,900.23 = 12,601.65 : x
  2. Step 2: Convert to fraction form
    13,266.79/19,900.23 = 12,601.65/x
  3. Step 3: Cross multiply
    13,266.79x = 19,900.23 × 12,601.65
  4. Step 4: Simplify right side
    13,266.79x = 250,775,775.66
  5. Step 5: Solve for x
    x = 250,775,775.66/13,266.79
  6. Step 6: Final answer
    x = 18,902.52

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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.