Home / 18,215.55-25,137.41-10,663.29

Finding the Fourth Proportional to 18,215.55, 25,137.41 and 10,663.29

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Solution

The fourth proportional to 18,215.55, 25,137.41 and 10,663.29 is: 14,715.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.55 : 25,137.41 = 10,663.29 : x
  2. Step 2: Convert to fraction form
    18,215.55/25,137.41 = 10,663.29/x
  3. Step 3: Cross multiply
    18,215.55x = 25,137.41 × 10,663.29
  4. Step 4: Simplify right side
    18,215.55x = 268,047,439.36
  5. Step 5: Solve for x
    x = 268,047,439.36/18,215.55
  6. Step 6: Final answer
    x = 14,715.31

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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.