Home / 15,005.87-20,710.96-9,892.41

Finding the Fourth Proportional to 15,005.87, 20,710.96 and 9,892.41

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Solution

The fourth proportional to 15,005.87, 20,710.96 and 9,892.41 is: 13,653.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,005.87 : 20,710.96 = 9,892.41 : x
  2. Step 2: Convert to fraction form
    15,005.87/20,710.96 = 9,892.41/x
  3. Step 3: Cross multiply
    15,005.87x = 20,710.96 × 9,892.41
  4. Step 4: Simplify right side
    15,005.87x = 204,881,377.56
  5. Step 5: Solve for x
    x = 204,881,377.56/15,005.87
  6. Step 6: Final answer
    x = 13,653.42

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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.