Home / 14,220.50-19,621.86-8,250.80

Finding the Fourth Proportional to 14,220.50, 19,621.86 and 8,250.80

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Solution

The fourth proportional to 14,220.50, 19,621.86 and 8,250.80 is: 11,384.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.50 : 19,621.86 = 8,250.80 : x
  2. Step 2: Convert to fraction form
    14,220.50/19,621.86 = 8,250.80/x
  3. Step 3: Cross multiply
    14,220.50x = 19,621.86 × 8,250.80
  4. Step 4: Simplify right side
    14,220.50x = 161,896,042.49
  5. Step 5: Solve for x
    x = 161,896,042.49/14,220.50
  6. Step 6: Final answer
    x = 11,384.69

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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.