Home / 12,718.64-19,082.10-6,145.56

Finding the Fourth Proportional to 12,718.64, 19,082.10 and 6,145.56

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Solution

The fourth proportional to 12,718.64, 19,082.10 and 6,145.56 is: 9,220.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718.64 : 19,082.10 = 6,145.56 : x
  2. Step 2: Convert to fraction form
    12,718.64/19,082.10 = 6,145.56/x
  3. Step 3: Cross multiply
    12,718.64x = 19,082.10 × 6,145.56
  4. Step 4: Simplify right side
    12,718.64x = 117,270,190.48
  5. Step 5: Solve for x
    x = 117,270,190.48/12,718.64
  6. Step 6: Final answer
    x = 9,220.34

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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.