Home / 8,416.86-11,615.30-4,639.94

Finding the Fourth Proportional to 8,416.86, 11,615.30 and 4,639.94

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Solution

The fourth proportional to 8,416.86, 11,615.30 and 4,639.94 is: 6,403.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.86 : 11,615.30 = 4,639.94 : x
  2. Step 2: Convert to fraction form
    8,416.86/11,615.30 = 4,639.94/x
  3. Step 3: Cross multiply
    8,416.86x = 11,615.30 × 4,639.94
  4. Step 4: Simplify right side
    8,416.86x = 53,894,340.10
  5. Step 5: Solve for x
    x = 53,894,340.10/8,416.86
  6. Step 6: Final answer
    x = 6,403.14

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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.