Home / 16,220.07-22,378.55-9,503.55

Finding the Fourth Proportional to 16,220.07, 22,378.55 and 9,503.55

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Solution

The fourth proportional to 16,220.07, 22,378.55 and 9,503.55 is: 13,111.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,220.07 : 22,378.55 = 9,503.55 : x
  2. Step 2: Convert to fraction form
    16,220.07/22,378.55 = 9,503.55/x
  3. Step 3: Cross multiply
    16,220.07x = 22,378.55 × 9,503.55
  4. Step 4: Simplify right side
    16,220.07x = 212,675,621.33
  5. Step 5: Solve for x
    x = 212,675,621.33/16,220.07
  6. Step 6: Final answer
    x = 13,111.88

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Half scale
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Double scale
Find fourth proportional to 16,221.07, 22,379.92 and 9,504.55
Similar ratio
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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.