Home / 15,622.49-21,559.55-8,548.91

Finding the Fourth Proportional to 15,622.49, 21,559.55 and 8,548.91

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Solution

The fourth proportional to 15,622.49, 21,559.55 and 8,548.91 is: 11,797.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,622.49 : 21,559.55 = 8,548.91 : x
  2. Step 2: Convert to fraction form
    15,622.49/21,559.55 = 8,548.91/x
  3. Step 3: Cross multiply
    15,622.49x = 21,559.55 × 8,548.91
  4. Step 4: Simplify right side
    15,622.49x = 184,310,652.59
  5. Step 5: Solve for x
    x = 184,310,652.59/15,622.49
  6. Step 6: Final answer
    x = 11,797.78

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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.