Home / 15,486.03-23,218.11-7,690.59

Finding the Fourth Proportional to 15,486.03, 23,218.11 and 7,690.59

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Solution

The fourth proportional to 15,486.03, 23,218.11 and 7,690.59 is: 11,530.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,486.03 : 23,218.11 = 7,690.59 : x
  2. Step 2: Convert to fraction form
    15,486.03/23,218.11 = 7,690.59/x
  3. Step 3: Cross multiply
    15,486.03x = 23,218.11 × 7,690.59
  4. Step 4: Simplify right side
    15,486.03x = 178,560,964.58
  5. Step 5: Solve for x
    x = 178,560,964.58/15,486.03
  6. Step 6: Final answer
    x = 11,530.45

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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.