Home / 12,261.31-18,400.04-6,718.54

Finding the Fourth Proportional to 12,261.31, 18,400.04 and 6,718.54

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Solution

The fourth proportional to 12,261.31, 18,400.04 and 6,718.54 is: 10,082.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.31 : 18,400.04 = 6,718.54 : x
  2. Step 2: Convert to fraction form
    12,261.31/18,400.04 = 6,718.54/x
  3. Step 3: Cross multiply
    12,261.31x = 18,400.04 × 6,718.54
  4. Step 4: Simplify right side
    12,261.31x = 123,621,411.23
  5. Step 5: Solve for x
    x = 123,621,411.23/12,261.31
  6. Step 6: Final answer
    x = 10,082.24

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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.