Home / 18,672.24-28,008.36-12,811.08

Finding the Fourth Proportional to 18,672.24, 28,008.36 and 12,811.08

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Solution

The fourth proportional to 18,672.24, 28,008.36 and 12,811.08 is: 19,216.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,672.24 : 28,008.36 = 12,811.08 : x
  2. Step 2: Convert to fraction form
    18,672.24/28,008.36 = 12,811.08/x
  3. Step 3: Cross multiply
    18,672.24x = 28,008.36 × 12,811.08
  4. Step 4: Simplify right side
    18,672.24x = 358,817,340.63
  5. Step 5: Solve for x
    x = 358,817,340.63/18,672.24
  6. Step 6: Final answer
    x = 19,216.62

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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.