Home / 12,790.76-19,191.72-4,476.75

Finding the Fourth Proportional to 12,790.76, 19,191.72 and 4,476.75

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Solution

The fourth proportional to 12,790.76, 19,191.72 and 4,476.75 is: 6,717.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.76 : 19,191.72 = 4,476.75 : x
  2. Step 2: Convert to fraction form
    12,790.76/19,191.72 = 4,476.75/x
  3. Step 3: Cross multiply
    12,790.76x = 19,191.72 × 4,476.75
  4. Step 4: Simplify right side
    12,790.76x = 85,916,532.51
  5. Step 5: Solve for x
    x = 85,916,532.51/12,790.76
  6. Step 6: Final answer
    x = 6,717.08

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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.