Home / 13,623.65-20,316.26-13,499.09

Finding the Fourth Proportional to 13,623.65, 20,316.26 and 13,499.09

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Solution

The fourth proportional to 13,623.65, 20,316.26 and 13,499.09 is: 20,130.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.65 : 20,316.26 = 13,499.09 : x
  2. Step 2: Convert to fraction form
    13,623.65/20,316.26 = 13,499.09/x
  3. Step 3: Cross multiply
    13,623.65x = 20,316.26 × 13,499.09
  4. Step 4: Simplify right side
    13,623.65x = 274,251,106.74
  5. Step 5: Solve for x
    x = 274,251,106.74/13,623.65
  6. Step 6: Final answer
    x = 20,130.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.