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Finding the Fourth Proportional to 8,559.34, 11,812.14 and 4,782.39

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Solution

The fourth proportional to 8,559.34, 11,812.14 and 4,782.39 is: 6,599.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.34 : 11,812.14 = 4,782.39 : x
  2. Step 2: Convert to fraction form
    8,559.34/11,812.14 = 4,782.39/x
  3. Step 3: Cross multiply
    8,559.34x = 11,812.14 × 4,782.39
  4. Step 4: Simplify right side
    8,559.34x = 56,490,260.21
  5. Step 5: Solve for x
    x = 56,490,260.21/8,559.34
  6. Step 6: Final answer
    x = 6,599.84

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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.