Home / 15,637.82-21,579.39-8,562.87

Finding the Fourth Proportional to 15,637.82, 21,579.39 and 8,562.87

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Solution

The fourth proportional to 15,637.82, 21,579.39 and 8,562.87 is: 11,816.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,637.82 : 21,579.39 = 8,562.87 : x
  2. Step 2: Convert to fraction form
    15,637.82/21,579.39 = 8,562.87/x
  3. Step 3: Cross multiply
    15,637.82x = 21,579.39 × 8,562.87
  4. Step 4: Simplify right side
    15,637.82x = 184,781,522.38
  5. Step 5: Solve for x
    x = 184,781,522.38/15,637.82
  6. Step 6: Final answer
    x = 11,816.32

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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.