Home / 7,851.10-10,831.83-4,865.85

Finding the Fourth Proportional to 7,851.10, 10,831.83 and 4,865.85

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Solution

The fourth proportional to 7,851.10, 10,831.83 and 4,865.85 is: 6,713.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.10 : 10,831.83 = 4,865.85 : x
  2. Step 2: Convert to fraction form
    7,851.10/10,831.83 = 4,865.85/x
  3. Step 3: Cross multiply
    7,851.10x = 10,831.83 × 4,865.85
  4. Step 4: Simplify right side
    7,851.10x = 52,706,060.01
  5. Step 5: Solve for x
    x = 52,706,060.01/7,851.10
  6. Step 6: Final answer
    x = 6,713.21

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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.