Home / 12,556.16-18,837.29-3,790.55

Finding the Fourth Proportional to 12,556.16, 18,837.29 and 3,790.55

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Solution

The fourth proportional to 12,556.16, 18,837.29 and 3,790.55 is: 5,686.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.16 : 18,837.29 = 3,790.55 : x
  2. Step 2: Convert to fraction form
    12,556.16/18,837.29 = 3,790.55/x
  3. Step 3: Cross multiply
    12,556.16x = 18,837.29 × 3,790.55
  4. Step 4: Simplify right side
    12,556.16x = 71,403,689.61
  5. Step 5: Solve for x
    x = 71,403,689.61/12,556.16
  6. Step 6: Final answer
    x = 5,686.75

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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.