Home / 14,008.20-21,012.30-11,545.80

Finding the Fourth Proportional to 14,008.20, 21,012.30 and 11,545.80

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Solution

The fourth proportional to 14,008.20, 21,012.30 and 11,545.80 is: 17,318.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.20 : 21,012.30 = 11,545.80 : x
  2. Step 2: Convert to fraction form
    14,008.20/21,012.30 = 11,545.80/x
  3. Step 3: Cross multiply
    14,008.20x = 21,012.30 × 11,545.80
  4. Step 4: Simplify right side
    14,008.20x = 242,603,813.34
  5. Step 5: Solve for x
    x = 242,603,813.34/14,008.20
  6. Step 6: Final answer
    x = 17,318.70

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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.