Home / 14,545.50-21,818.25-5,311.50

Finding the Fourth Proportional to 14,545.50, 21,818.25 and 5,311.50

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Solution

The fourth proportional to 14,545.50, 21,818.25 and 5,311.50 is: 7,967.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,545.50 : 21,818.25 = 5,311.50 : x
  2. Step 2: Convert to fraction form
    14,545.50/21,818.25 = 5,311.50/x
  3. Step 3: Cross multiply
    14,545.50x = 21,818.25 × 5,311.50
  4. Step 4: Simplify right side
    14,545.50x = 115,887,634.88
  5. Step 5: Solve for x
    x = 115,887,634.88/14,545.50
  6. Step 6: Final answer
    x = 7,967.25

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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.