Home / 13,585.25-20,372.72-5,688.29

Finding the Fourth Proportional to 13,585.25, 20,372.72 and 5,688.29

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Solution

The fourth proportional to 13,585.25, 20,372.72 and 5,688.29 is: 8,530.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.25 : 20,372.72 = 5,688.29 : x
  2. Step 2: Convert to fraction form
    13,585.25/20,372.72 = 5,688.29/x
  3. Step 3: Cross multiply
    13,585.25x = 20,372.72 × 5,688.29
  4. Step 4: Simplify right side
    13,585.25x = 115,885,961.94
  5. Step 5: Solve for x
    x = 115,885,961.94/13,585.25
  6. Step 6: Final answer
    x = 8,530.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.