Home / 8,428.12-11,630.93-4,651.46

Finding the Fourth Proportional to 8,428.12, 11,630.93 and 4,651.46

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Solution

The fourth proportional to 8,428.12, 11,630.93 and 4,651.46 is: 6,419.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.12 : 11,630.93 = 4,651.46 : x
  2. Step 2: Convert to fraction form
    8,428.12/11,630.93 = 4,651.46/x
  3. Step 3: Cross multiply
    8,428.12x = 11,630.93 × 4,651.46
  4. Step 4: Simplify right side
    8,428.12x = 54,100,767.86
  5. Step 5: Solve for x
    x = 54,100,767.86/8,428.12
  6. Step 6: Final answer
    x = 6,419.08

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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.