Home / 15,623.90-21,560.89-8,550.30

Finding the Fourth Proportional to 15,623.90, 21,560.89 and 8,550.30

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Solution

The fourth proportional to 15,623.90, 21,560.89 and 8,550.30 is: 11,799.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,623.90 : 21,560.89 = 8,550.30 : x
  2. Step 2: Convert to fraction form
    15,623.90/21,560.89 = 8,550.30/x
  3. Step 3: Cross multiply
    15,623.90x = 21,560.89 × 8,550.30
  4. Step 4: Simplify right side
    15,623.90x = 184,352,035.02
  5. Step 5: Solve for x
    x = 184,352,035.02/15,623.90
  6. Step 6: Final answer
    x = 11,799.36

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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.