Home / 8,243.64-11,378.28-4,708.90

Finding the Fourth Proportional to 8,243.64, 11,378.28 and 4,708.90

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Solution

The fourth proportional to 8,243.64, 11,378.28 and 4,708.90 is: 6,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,243.64 : 11,378.28 = 4,708.90 : x
  2. Step 2: Convert to fraction form
    8,243.64/11,378.28 = 4,708.90/x
  3. Step 3: Cross multiply
    8,243.64x = 11,378.28 × 4,708.90
  4. Step 4: Simplify right side
    8,243.64x = 53,579,102.26
  5. Step 5: Solve for x
    x = 53,579,102.26/8,243.64
  6. Step 6: Final answer
    x = 6,499.45

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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.