Home / 10,953.62-15,115.74-6,173.80

Finding the Fourth Proportional to 10,953.62, 15,115.74 and 6,173.80

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Solution

The fourth proportional to 10,953.62, 15,115.74 and 6,173.80 is: 8,519.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,953.62 : 15,115.74 = 6,173.80 : x
  2. Step 2: Convert to fraction form
    10,953.62/15,115.74 = 6,173.80/x
  3. Step 3: Cross multiply
    10,953.62x = 15,115.74 × 6,173.80
  4. Step 4: Simplify right side
    10,953.62x = 93,321,555.61
  5. Step 5: Solve for x
    x = 93,321,555.61/10,953.62
  6. Step 6: Final answer
    x = 8,519.70

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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.