Home / 12,484.02-18,719.81-4,161.12

Finding the Fourth Proportional to 12,484.02, 18,719.81 and 4,161.12

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Solution

The fourth proportional to 12,484.02, 18,719.81 and 4,161.12 is: 6,239.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,484.02 : 18,719.81 = 4,161.12 : x
  2. Step 2: Convert to fraction form
    12,484.02/18,719.81 = 4,161.12/x
  3. Step 3: Cross multiply
    12,484.02x = 18,719.81 × 4,161.12
  4. Step 4: Simplify right side
    12,484.02x = 77,895,405.69
  5. Step 5: Solve for x
    x = 77,895,405.69/12,484.02
  6. Step 6: Final answer
    x = 6,239.61

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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.