Home / 12,437.60-18,661.86-4,118.81

Finding the Fourth Proportional to 12,437.60, 18,661.86 and 4,118.81

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Solution

The fourth proportional to 12,437.60, 18,661.86 and 4,118.81 is: 6,180.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.60 : 18,661.86 = 4,118.81 : x
  2. Step 2: Convert to fraction form
    12,437.60/18,661.86 = 4,118.81/x
  3. Step 3: Cross multiply
    12,437.60x = 18,661.86 × 4,118.81
  4. Step 4: Simplify right side
    12,437.60x = 76,864,562.28
  5. Step 5: Solve for x
    x = 76,864,562.28/12,437.60
  6. Step 6: Final answer
    x = 6,180.02

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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.