Home / 12,556.14-18,823.44-5,155.98

Finding the Fourth Proportional to 12,556.14, 18,823.44 and 5,155.98

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Solution

The fourth proportional to 12,556.14, 18,823.44 and 5,155.98 is: 7,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.14 : 18,823.44 = 5,155.98 : x
  2. Step 2: Convert to fraction form
    12,556.14/18,823.44 = 5,155.98/x
  3. Step 3: Cross multiply
    12,556.14x = 18,823.44 × 5,155.98
  4. Step 4: Simplify right side
    12,556.14x = 97,053,280.17
  5. Step 5: Solve for x
    x = 97,053,280.17/12,556.14
  6. Step 6: Final answer
    x = 7,729.55

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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.