Home / 18,390.30-25,371.27-12,014.70

Finding the Fourth Proportional to 18,390.30, 25,371.27 and 12,014.70

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Solution

The fourth proportional to 18,390.30, 25,371.27 and 12,014.70 is: 16,575.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390.30 : 25,371.27 = 12,014.70 : x
  2. Step 2: Convert to fraction form
    18,390.30/25,371.27 = 12,014.70/x
  3. Step 3: Cross multiply
    18,390.30x = 25,371.27 × 12,014.70
  4. Step 4: Simplify right side
    18,390.30x = 304,828,197.67
  5. Step 5: Solve for x
    x = 304,828,197.67/18,390.30
  6. Step 6: Final answer
    x = 16,575.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.