Home / 7,784.55-10,743-4,247.94

Finding the Fourth Proportional to 7,784.55, 10,743 and 4,247.94

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Solution

The fourth proportional to 7,784.55, 10,743 and 4,247.94 is: 5,862.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,784.55 : 10,743 = 4,247.94 : x
  2. Step 2: Convert to fraction form
    7,784.55/10,743 = 4,247.94/x
  3. Step 3: Cross multiply
    7,784.55x = 10,743 × 4,247.94
  4. Step 4: Simplify right side
    7,784.55x = 45,635,619.42
  5. Step 5: Solve for x
    x = 45,635,619.42/7,784.55
  6. Step 6: Final answer
    x = 5,862.33

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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.