Home / 13,573.37-18,731.03-7,605

Finding the Fourth Proportional to 13,573.37, 18,731.03 and 7,605

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Solution

The fourth proportional to 13,573.37, 18,731.03 and 7,605 is: 10,494.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,573.37 : 18,731.03 = 7,605 : x
  2. Step 2: Convert to fraction form
    13,573.37/18,731.03 = 7,605/x
  3. Step 3: Cross multiply
    13,573.37x = 18,731.03 × 7,605
  4. Step 4: Simplify right side
    13,573.37x = 142,449,445.13
  5. Step 5: Solve for x
    x = 142,449,445.13/13,573.37
  6. Step 6: Final answer
    x = 10,494.78

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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.