Home / 13,317.05-18,369.77-8,535.29

Finding the Fourth Proportional to 13,317.05, 18,369.77 and 8,535.29

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Solution

The fourth proportional to 13,317.05, 18,369.77 and 8,535.29 is: 11,773.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.05 : 18,369.77 = 8,535.29 : x
  2. Step 2: Convert to fraction form
    13,317.05/18,369.77 = 8,535.29/x
  3. Step 3: Cross multiply
    13,317.05x = 18,369.77 × 8,535.29
  4. Step 4: Simplify right side
    13,317.05x = 156,791,381.45
  5. Step 5: Solve for x
    x = 156,791,381.45/13,317.05
  6. Step 6: Final answer
    x = 11,773.73

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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.