Home / 7,121.64-10,670.94-5,823.72

Finding the Fourth Proportional to 7,121.64, 10,670.94 and 5,823.72

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Solution

The fourth proportional to 7,121.64, 10,670.94 and 5,823.72 is: 8,726.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.64 : 10,670.94 = 5,823.72 : x
  2. Step 2: Convert to fraction form
    7,121.64/10,670.94 = 5,823.72/x
  3. Step 3: Cross multiply
    7,121.64x = 10,670.94 × 5,823.72
  4. Step 4: Simplify right side
    7,121.64x = 62,144,566.70
  5. Step 5: Solve for x
    x = 62,144,566.70/7,121.64
  6. Step 6: Final answer
    x = 8,726.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.