Home / 8,447.32-12,668.80-5,814.28

Finding the Fourth Proportional to 8,447.32, 12,668.80 and 5,814.28

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Solution

The fourth proportional to 8,447.32, 12,668.80 and 5,814.28 is: 8,719.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.32 : 12,668.80 = 5,814.28 : x
  2. Step 2: Convert to fraction form
    8,447.32/12,668.80 = 5,814.28/x
  3. Step 3: Cross multiply
    8,447.32x = 12,668.80 × 5,814.28
  4. Step 4: Simplify right side
    8,447.32x = 73,659,950.46
  5. Step 5: Solve for x
    x = 73,659,950.46/8,447.32
  6. Step 6: Final answer
    x = 8,719.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.