Home / 13,485.70-18,610.32-7,436.62

Finding the Fourth Proportional to 13,485.70, 18,610.32 and 7,436.62

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Solution

The fourth proportional to 13,485.70, 18,610.32 and 7,436.62 is: 10,262.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.70 : 18,610.32 = 7,436.62 : x
  2. Step 2: Convert to fraction form
    13,485.70/18,610.32 = 7,436.62/x
  3. Step 3: Cross multiply
    13,485.70x = 18,610.32 × 7,436.62
  4. Step 4: Simplify right side
    13,485.70x = 138,397,877.92
  5. Step 5: Solve for x
    x = 138,397,877.92/13,485.70
  6. Step 6: Final answer
    x = 10,262.57

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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.