Home / 12,477.89-18,718.66-5,082.79

Finding the Fourth Proportional to 12,477.89, 18,718.66 and 5,082.79

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Solution

The fourth proportional to 12,477.89, 18,718.66 and 5,082.79 is: 7,624.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477.89 : 18,718.66 = 5,082.79 : x
  2. Step 2: Convert to fraction form
    12,477.89/18,718.66 = 5,082.79/x
  3. Step 3: Cross multiply
    12,477.89x = 18,718.66 × 5,082.79
  4. Step 4: Simplify right side
    12,477.89x = 95,143,017.86
  5. Step 5: Solve for x
    x = 95,143,017.86/12,477.89
  6. Step 6: Final answer
    x = 7,624.93

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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.