Home / 15,294.08-21,108.72-9,993.44

Finding the Fourth Proportional to 15,294.08, 21,108.72 and 9,993.44

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Solution

The fourth proportional to 15,294.08, 21,108.72 and 9,993.44 is: 13,792.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,294.08 : 21,108.72 = 9,993.44 : x
  2. Step 2: Convert to fraction form
    15,294.08/21,108.72 = 9,993.44/x
  3. Step 3: Cross multiply
    15,294.08x = 21,108.72 × 9,993.44
  4. Step 4: Simplify right side
    15,294.08x = 210,948,726.80
  5. Step 5: Solve for x
    x = 210,948,726.80/15,294.08
  6. Step 6: Final answer
    x = 13,792.84

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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.