Home / 16,986.88-25,490.16-7,125.36

Finding the Fourth Proportional to 16,986.88, 25,490.16 and 7,125.36

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Solution

The fourth proportional to 16,986.88, 25,490.16 and 7,125.36 is: 10,692.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,986.88 : 25,490.16 = 7,125.36 : x
  2. Step 2: Convert to fraction form
    16,986.88/25,490.16 = 7,125.36/x
  3. Step 3: Cross multiply
    16,986.88x = 25,490.16 × 7,125.36
  4. Step 4: Simplify right side
    16,986.88x = 181,626,566.46
  5. Step 5: Solve for x
    x = 181,626,566.46/16,986.88
  6. Step 6: Final answer
    x = 10,692.17

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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.