Home / 16,942.72-25,406.40-9,139.84

Finding the Fourth Proportional to 16,942.72, 25,406.40 and 9,139.84

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Solution

The fourth proportional to 16,942.72, 25,406.40 and 9,139.84 is: 13,705.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,942.72 : 25,406.40 = 9,139.84 : x
  2. Step 2: Convert to fraction form
    16,942.72/25,406.40 = 9,139.84/x
  3. Step 3: Cross multiply
    16,942.72x = 25,406.40 × 9,139.84
  4. Step 4: Simplify right side
    16,942.72x = 232,210,430.98
  5. Step 5: Solve for x
    x = 232,210,430.98/16,942.72
  6. Step 6: Final answer
    x = 13,705.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.