Home / 13,445.12-18,554.73-7,395.62

Finding the Fourth Proportional to 13,445.12, 18,554.73 and 7,395.62

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Solution

The fourth proportional to 13,445.12, 18,554.73 and 7,395.62 is: 10,206.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.12 : 18,554.73 = 7,395.62 : x
  2. Step 2: Convert to fraction form
    13,445.12/18,554.73 = 7,395.62/x
  3. Step 3: Cross multiply
    13,445.12x = 18,554.73 × 7,395.62
  4. Step 4: Simplify right side
    13,445.12x = 137,223,716.15
  5. Step 5: Solve for x
    x = 137,223,716.15/13,445.12
  6. Step 6: Final answer
    x = 10,206.21

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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.