Home / 12,775.17-19,160.50-3,888.36

Finding the Fourth Proportional to 12,775.17, 19,160.50 and 3,888.36

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Solution

The fourth proportional to 12,775.17, 19,160.50 and 3,888.36 is: 5,831.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775.17 : 19,160.50 = 3,888.36 : x
  2. Step 2: Convert to fraction form
    12,775.17/19,160.50 = 3,888.36/x
  3. Step 3: Cross multiply
    12,775.17x = 19,160.50 × 3,888.36
  4. Step 4: Simplify right side
    12,775.17x = 74,502,806.54
  5. Step 5: Solve for x
    x = 74,502,806.54/12,775.17
  6. Step 6: Final answer
    x = 5,831.85

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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.