Home / 15,637.56-21,579.84-8,564.04

Finding the Fourth Proportional to 15,637.56, 21,579.84 and 8,564.04

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Solution

The fourth proportional to 15,637.56, 21,579.84 and 8,564.04 is: 11,818.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,637.56 : 21,579.84 = 8,564.04 : x
  2. Step 2: Convert to fraction form
    15,637.56/21,579.84 = 8,564.04/x
  3. Step 3: Cross multiply
    15,637.56x = 21,579.84 × 8,564.04
  4. Step 4: Simplify right side
    15,637.56x = 184,810,612.95
  5. Step 5: Solve for x
    x = 184,810,612.95/15,637.56
  6. Step 6: Final answer
    x = 11,818.38

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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.