Home / 18,372.61-25,359.93-10,818.34

Finding the Fourth Proportional to 18,372.61, 25,359.93 and 10,818.34

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Solution

The fourth proportional to 18,372.61, 25,359.93 and 10,818.34 is: 14,932.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372.61 : 25,359.93 = 10,818.34 : x
  2. Step 2: Convert to fraction form
    18,372.61/25,359.93 = 10,818.34/x
  3. Step 3: Cross multiply
    18,372.61x = 25,359.93 × 10,818.34
  4. Step 4: Simplify right side
    18,372.61x = 274,352,345.12
  5. Step 5: Solve for x
    x = 274,352,345.12/18,372.61
  6. Step 6: Final answer
    x = 14,932.68

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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.