Home / 7,372.15-10,172.90-4,387.51

Finding the Fourth Proportional to 7,372.15, 10,172.90 and 4,387.51

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Solution

The fourth proportional to 7,372.15, 10,172.90 and 4,387.51 is: 6,054.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,372.15 : 10,172.90 = 4,387.51 : x
  2. Step 2: Convert to fraction form
    7,372.15/10,172.90 = 4,387.51/x
  3. Step 3: Cross multiply
    7,372.15x = 10,172.90 × 4,387.51
  4. Step 4: Simplify right side
    7,372.15x = 44,633,627.68
  5. Step 5: Solve for x
    x = 44,633,627.68/7,372.15
  6. Step 6: Final answer
    x = 6,054.36

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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.