Home / 6,378.45-8,806.55-5,704.16

Finding the Fourth Proportional to 6,378.45, 8,806.55 and 5,704.16

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Solution

The fourth proportional to 6,378.45, 8,806.55 and 5,704.16 is: 7,875.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.45 : 8,806.55 = 5,704.16 : x
  2. Step 2: Convert to fraction form
    6,378.45/8,806.55 = 5,704.16/x
  3. Step 3: Cross multiply
    6,378.45x = 8,806.55 × 5,704.16
  4. Step 4: Simplify right side
    6,378.45x = 50,233,897.69
  5. Step 5: Solve for x
    x = 50,233,897.69/6,378.45
  6. Step 6: Final answer
    x = 7,875.57

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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.