Home / 15,622.30-21,558.90-8,548.78

Finding the Fourth Proportional to 15,622.30, 21,558.90 and 8,548.78

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Solution

The fourth proportional to 15,622.30, 21,558.90 and 8,548.78 is: 11,797.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,622.30 : 21,558.90 = 8,548.78 : x
  2. Step 2: Convert to fraction form
    15,622.30/21,558.90 = 8,548.78/x
  3. Step 3: Cross multiply
    15,622.30x = 21,558.90 × 8,548.78
  4. Step 4: Simplify right side
    15,622.30x = 184,302,293.14
  5. Step 5: Solve for x
    x = 184,302,293.14/15,622.30
  6. Step 6: Final answer
    x = 11,797.39

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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.