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Finding the Fourth Proportional to 8,859.71, 13,284.95 and 4,178.46

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Solution

The fourth proportional to 8,859.71, 13,284.95 and 4,178.46 is: 6,265.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.71 : 13,284.95 = 4,178.46 : x
  2. Step 2: Convert to fraction form
    8,859.71/13,284.95 = 4,178.46/x
  3. Step 3: Cross multiply
    8,859.71x = 13,284.95 × 4,178.46
  4. Step 4: Simplify right side
    8,859.71x = 55,510,697.53
  5. Step 5: Solve for x
    x = 55,510,697.53/8,859.71
  6. Step 6: Final answer
    x = 6,265.52

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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.