Home / 12,406.56-18,610.14-3,641.45

Finding the Fourth Proportional to 12,406.56, 18,610.14 and 3,641.45

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Solution

The fourth proportional to 12,406.56, 18,610.14 and 3,641.45 is: 5,462.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,406.56 : 18,610.14 = 3,641.45 : x
  2. Step 2: Convert to fraction form
    12,406.56/18,610.14 = 3,641.45/x
  3. Step 3: Cross multiply
    12,406.56x = 18,610.14 × 3,641.45
  4. Step 4: Simplify right side
    12,406.56x = 67,767,801.25
  5. Step 5: Solve for x
    x = 67,767,801.25/12,406.56
  6. Step 6: Final answer
    x = 5,462.26

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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.