Home / 16,220.80-22,384.73-9,505.09

Finding the Fourth Proportional to 16,220.80, 22,384.73 and 9,505.09

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Solution

The fourth proportional to 16,220.80, 22,384.73 and 9,505.09 is: 13,117.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,220.80 : 22,384.73 = 9,505.09 : x
  2. Step 2: Convert to fraction form
    16,220.80/22,384.73 = 9,505.09/x
  3. Step 3: Cross multiply
    16,220.80x = 22,384.73 × 9,505.09
  4. Step 4: Simplify right side
    16,220.80x = 212,768,881.71
  5. Step 5: Solve for x
    x = 212,768,881.71/16,220.80
  6. Step 6: Final answer
    x = 13,117.04

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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.