Home / 16,983.84-25,485.66-7,122.36

Finding the Fourth Proportional to 16,983.84, 25,485.66 and 7,122.36

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Solution

The fourth proportional to 16,983.84, 25,485.66 and 7,122.36 is: 10,687.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,983.84 : 25,485.66 = 7,122.36 : x
  2. Step 2: Convert to fraction form
    16,983.84/25,485.66 = 7,122.36/x
  3. Step 3: Cross multiply
    16,983.84x = 25,485.66 × 7,122.36
  4. Step 4: Simplify right side
    16,983.84x = 181,518,045.36
  5. Step 5: Solve for x
    x = 181,518,045.36/16,983.84
  6. Step 6: Final answer
    x = 10,687.69

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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.