Home / 15,549.98-21,458.97-8,835.62

Finding the Fourth Proportional to 15,549.98, 21,458.97 and 8,835.62

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Solution

The fourth proportional to 15,549.98, 21,458.97 and 8,835.62 is: 12,193.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,549.98 : 21,458.97 = 8,835.62 : x
  2. Step 2: Convert to fraction form
    15,549.98/21,458.97 = 8,835.62/x
  3. Step 3: Cross multiply
    15,549.98x = 21,458.97 × 8,835.62
  4. Step 4: Simplify right side
    15,549.98x = 189,603,304.51
  5. Step 5: Solve for x
    x = 189,603,304.51/15,549.98
  6. Step 6: Final answer
    x = 12,193.15

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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.