Home / 15,616.90-21,550.08-8,543.26

Finding the Fourth Proportional to 15,616.90, 21,550.08 and 8,543.26

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Solution

The fourth proportional to 15,616.90, 21,550.08 and 8,543.26 is: 11,789.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,616.90 : 21,550.08 = 8,543.26 : x
  2. Step 2: Convert to fraction form
    15,616.90/21,550.08 = 8,543.26/x
  3. Step 3: Cross multiply
    15,616.90x = 21,550.08 × 8,543.26
  4. Step 4: Simplify right side
    15,616.90x = 184,107,936.46
  5. Step 5: Solve for x
    x = 184,107,936.46/15,616.90
  6. Step 6: Final answer
    x = 11,789.02

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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.