Home / 19,855.58-29,774.62-9,328.59

Finding the Fourth Proportional to 19,855.58, 29,774.62 and 9,328.59

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Solution

The fourth proportional to 19,855.58, 29,774.62 and 9,328.59 is: 13,988.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,855.58 : 29,774.62 = 9,328.59 : x
  2. Step 2: Convert to fraction form
    19,855.58/29,774.62 = 9,328.59/x
  3. Step 3: Cross multiply
    19,855.58x = 29,774.62 × 9,328.59
  4. Step 4: Simplify right side
    19,855.58x = 277,755,320.14
  5. Step 5: Solve for x
    x = 277,755,320.14/19,855.58
  6. Step 6: Final answer
    x = 13,988.78

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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.