Home / 12,872.99-19,275.64-10,360.80

Finding the Fourth Proportional to 12,872.99, 19,275.64 and 10,360.80

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Solution

The fourth proportional to 12,872.99, 19,275.64 and 10,360.80 is: 15,513.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872.99 : 19,275.64 = 10,360.80 : x
  2. Step 2: Convert to fraction form
    12,872.99/19,275.64 = 10,360.80/x
  3. Step 3: Cross multiply
    12,872.99x = 19,275.64 × 10,360.80
  4. Step 4: Simplify right side
    12,872.99x = 199,711,025.01
  5. Step 5: Solve for x
    x = 199,711,025.01/12,872.99
  6. Step 6: Final answer
    x = 15,513.95

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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.