Home / 12,877.76-19,314.05-3,516.99

Finding the Fourth Proportional to 12,877.76, 19,314.05 and 3,516.99

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Solution

The fourth proportional to 12,877.76, 19,314.05 and 3,516.99 is: 5,274.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.76 : 19,314.05 = 3,516.99 : x
  2. Step 2: Convert to fraction form
    12,877.76/19,314.05 = 3,516.99/x
  3. Step 3: Cross multiply
    12,877.76x = 19,314.05 × 3,516.99
  4. Step 4: Simplify right side
    12,877.76x = 67,927,303.12
  5. Step 5: Solve for x
    x = 67,927,303.12/12,877.76
  6. Step 6: Final answer
    x = 5,274.78

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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.