Home / 12,862.16-19,280.94-4,091.38

Finding the Fourth Proportional to 12,862.16, 19,280.94 and 4,091.38

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Solution

The fourth proportional to 12,862.16, 19,280.94 and 4,091.38 is: 6,133.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,862.16 : 19,280.94 = 4,091.38 : x
  2. Step 2: Convert to fraction form
    12,862.16/19,280.94 = 4,091.38/x
  3. Step 3: Cross multiply
    12,862.16x = 19,280.94 × 4,091.38
  4. Step 4: Simplify right side
    12,862.16x = 78,885,588.75
  5. Step 5: Solve for x
    x = 78,885,588.75/12,862.16
  6. Step 6: Final answer
    x = 6,133.15

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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.