Home / 11,175.87-15,423.51-7,392.48

Finding the Fourth Proportional to 11,175.87, 15,423.51 and 7,392.48

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Solution

The fourth proportional to 11,175.87, 15,423.51 and 7,392.48 is: 10,202.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,175.87 : 15,423.51 = 7,392.48 : x
  2. Step 2: Convert to fraction form
    11,175.87/15,423.51 = 7,392.48/x
  3. Step 3: Cross multiply
    11,175.87x = 15,423.51 × 7,392.48
  4. Step 4: Simplify right side
    11,175.87x = 114,017,989.20
  5. Step 5: Solve for x
    x = 114,017,989.20/11,175.87
  6. Step 6: Final answer
    x = 10,202.16

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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.