Home / 13,147.02-18,143.10-7,844.94

Finding the Fourth Proportional to 13,147.02, 18,143.10 and 7,844.94

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Solution

The fourth proportional to 13,147.02, 18,143.10 and 7,844.94 is: 10,826.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147.02 : 18,143.10 = 7,844.94 : x
  2. Step 2: Convert to fraction form
    13,147.02/18,143.10 = 7,844.94/x
  3. Step 3: Cross multiply
    13,147.02x = 18,143.10 × 7,844.94
  4. Step 4: Simplify right side
    13,147.02x = 142,331,530.91
  5. Step 5: Solve for x
    x = 142,331,530.91/13,147.02
  6. Step 6: Final answer
    x = 10,826.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.