Home / 12,218.02-18,312.64-5,195.92

Finding the Fourth Proportional to 12,218.02, 18,312.64 and 5,195.92

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Solution

The fourth proportional to 12,218.02, 18,312.64 and 5,195.92 is: 7,787.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.02 : 18,312.64 = 5,195.92 : x
  2. Step 2: Convert to fraction form
    12,218.02/18,312.64 = 5,195.92/x
  3. Step 3: Cross multiply
    12,218.02x = 18,312.64 × 5,195.92
  4. Step 4: Simplify right side
    12,218.02x = 95,151,012.43
  5. Step 5: Solve for x
    x = 95,151,012.43/12,218.02
  6. Step 6: Final answer
    x = 7,787.76

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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.