Home / 15,616.63-21,550.89-8,543.04

Finding the Fourth Proportional to 15,616.63, 21,550.89 and 8,543.04

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Solution

The fourth proportional to 15,616.63, 21,550.89 and 8,543.04 is: 11,789.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,616.63 : 21,550.89 = 8,543.04 : x
  2. Step 2: Convert to fraction form
    15,616.63/21,550.89 = 8,543.04/x
  3. Step 3: Cross multiply
    15,616.63x = 21,550.89 × 8,543.04
  4. Step 4: Simplify right side
    15,616.63x = 184,110,066.53
  5. Step 5: Solve for x
    x = 184,110,066.53/15,616.63
  6. Step 6: Final answer
    x = 11,789.36

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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.