Home / 7,784.46-10,742.63-4,247.69

Finding the Fourth Proportional to 7,784.46, 10,742.63 and 4,247.69

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Solution

The fourth proportional to 7,784.46, 10,742.63 and 4,247.69 is: 5,861.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,784.46 : 10,742.63 = 4,247.69 : x
  2. Step 2: Convert to fraction form
    7,784.46/10,742.63 = 4,247.69/x
  3. Step 3: Cross multiply
    7,784.46x = 10,742.63 × 4,247.69
  4. Step 4: Simplify right side
    7,784.46x = 45,631,287.07
  5. Step 5: Solve for x
    x = 45,631,287.07/7,784.46
  6. Step 6: Final answer
    x = 5,861.84

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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.