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Finding the Fourth Proportional to 8,717.60, 12,030.27 and 4,738.68

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Solution

The fourth proportional to 8,717.60, 12,030.27 and 4,738.68 is: 6,539.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.60 : 12,030.27 = 4,738.68 : x
  2. Step 2: Convert to fraction form
    8,717.60/12,030.27 = 4,738.68/x
  3. Step 3: Cross multiply
    8,717.60x = 12,030.27 × 4,738.68
  4. Step 4: Simplify right side
    8,717.60x = 57,007,599.84
  5. Step 5: Solve for x
    x = 57,007,599.84/8,717.60
  6. Step 6: Final answer
    x = 6,539.37

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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.