Home / 15,621.77-21,558.01-8,548.18

Finding the Fourth Proportional to 15,621.77, 21,558.01 and 8,548.18

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Solution

The fourth proportional to 15,621.77, 21,558.01 and 8,548.18 is: 11,796.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621.77 : 21,558.01 = 8,548.18 : x
  2. Step 2: Convert to fraction form
    15,621.77/21,558.01 = 8,548.18/x
  3. Step 3: Cross multiply
    15,621.77x = 21,558.01 × 8,548.18
  4. Step 4: Simplify right side
    15,621.77x = 184,281,749.92
  5. Step 5: Solve for x
    x = 184,281,749.92/15,621.77
  6. Step 6: Final answer
    x = 11,796.47

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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.