Home / 13,395.95-18,475.75-8,616.44

Finding the Fourth Proportional to 13,395.95, 18,475.75 and 8,616.44

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Solution

The fourth proportional to 13,395.95, 18,475.75 and 8,616.44 is: 11,883.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.95 : 18,475.75 = 8,616.44 : x
  2. Step 2: Convert to fraction form
    13,395.95/18,475.75 = 8,616.44/x
  3. Step 3: Cross multiply
    13,395.95x = 18,475.75 × 8,616.44
  4. Step 4: Simplify right side
    13,395.95x = 159,195,199.82
  5. Step 5: Solve for x
    x = 159,195,199.82/13,395.95
  6. Step 6: Final answer
    x = 11,883.83

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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.