Home / 15,486.80-21,374.89-9,197.96

Finding the Fourth Proportional to 15,486.80, 21,374.89 and 9,197.96

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Solution

The fourth proportional to 15,486.80, 21,374.89 and 9,197.96 is: 12,695.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,486.80 : 21,374.89 = 9,197.96 : x
  2. Step 2: Convert to fraction form
    15,486.80/21,374.89 = 9,197.96/x
  3. Step 3: Cross multiply
    15,486.80x = 21,374.89 × 9,197.96
  4. Step 4: Simplify right side
    15,486.80x = 196,605,253.36
  5. Step 5: Solve for x
    x = 196,605,253.36/15,486.80
  6. Step 6: Final answer
    x = 12,695.03

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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.