Home / 13,437.82-18,520.10-10,928.24

Finding the Fourth Proportional to 13,437.82, 18,520.10 and 10,928.24

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Solution

The fourth proportional to 13,437.82, 18,520.10 and 10,928.24 is: 15,061.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.82 : 18,520.10 = 10,928.24 : x
  2. Step 2: Convert to fraction form
    13,437.82/18,520.10 = 10,928.24/x
  3. Step 3: Cross multiply
    13,437.82x = 18,520.10 × 10,928.24
  4. Step 4: Simplify right side
    13,437.82x = 202,392,097.62
  5. Step 5: Solve for x
    x = 202,392,097.62/13,437.82
  6. Step 6: Final answer
    x = 15,061.38

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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.