Home / 13,436.91-18,561.91-10,765.87

Finding the Fourth Proportional to 13,436.91, 18,561.91 and 10,765.87

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Solution

The fourth proportional to 13,436.91, 18,561.91 and 10,765.87 is: 14,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.91 : 18,561.91 = 10,765.87 : x
  2. Step 2: Convert to fraction form
    13,436.91/18,561.91 = 10,765.87/x
  3. Step 3: Cross multiply
    13,436.91x = 18,561.91 × 10,765.87
  4. Step 4: Simplify right side
    13,436.91x = 199,835,106.30
  5. Step 5: Solve for x
    x = 199,835,106.30/13,436.91
  6. Step 6: Final answer
    x = 14,872.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.