Home / 13,361.10-18,410.67-9,386.70

Finding the Fourth Proportional to 13,361.10, 18,410.67 and 9,386.70

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Solution

The fourth proportional to 13,361.10, 18,410.67 and 9,386.70 is: 12,934.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361.10 : 18,410.67 = 9,386.70 : x
  2. Step 2: Convert to fraction form
    13,361.10/18,410.67 = 9,386.70/x
  3. Step 3: Cross multiply
    13,361.10x = 18,410.67 × 9,386.70
  4. Step 4: Simplify right side
    13,361.10x = 172,815,436.09
  5. Step 5: Solve for x
    x = 172,815,436.09/13,361.10
  6. Step 6: Final answer
    x = 12,934.22

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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.