Home / 15,556.46-21,475.14-9,180.95

Finding the Fourth Proportional to 15,556.46, 21,475.14 and 9,180.95

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Solution

The fourth proportional to 15,556.46, 21,475.14 and 9,180.95 is: 12,673.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556.46 : 21,475.14 = 9,180.95 : x
  2. Step 2: Convert to fraction form
    15,556.46/21,475.14 = 9,180.95/x
  3. Step 3: Cross multiply
    15,556.46x = 21,475.14 × 9,180.95
  4. Step 4: Simplify right side
    15,556.46x = 197,162,186.58
  5. Step 5: Solve for x
    x = 197,162,186.58/15,556.46
  6. Step 6: Final answer
    x = 12,673.98

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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.