Home / 13,589.18-18,748.96-8,558.38

Finding the Fourth Proportional to 13,589.18, 18,748.96 and 8,558.38

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Solution

The fourth proportional to 13,589.18, 18,748.96 and 8,558.38 is: 11,807.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.18 : 18,748.96 = 8,558.38 : x
  2. Step 2: Convert to fraction form
    13,589.18/18,748.96 = 8,558.38/x
  3. Step 3: Cross multiply
    13,589.18x = 18,748.96 × 8,558.38
  4. Step 4: Simplify right side
    13,589.18x = 160,460,724.28
  5. Step 5: Solve for x
    x = 160,460,724.28/13,589.18
  6. Step 6: Final answer
    x = 11,807.98

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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.