Home / 18,421.83-25,421.31-10,463.94

Finding the Fourth Proportional to 18,421.83, 25,421.31 and 10,463.94

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Solution

The fourth proportional to 18,421.83, 25,421.31 and 10,463.94 is: 14,439.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.83 : 25,421.31 = 10,463.94 : x
  2. Step 2: Convert to fraction form
    18,421.83/25,421.31 = 10,463.94/x
  3. Step 3: Cross multiply
    18,421.83x = 25,421.31 × 10,463.94
  4. Step 4: Simplify right side
    18,421.83x = 266,007,062.56
  5. Step 5: Solve for x
    x = 266,007,062.56/18,421.83
  6. Step 6: Final answer
    x = 14,439.77

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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.