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Finding the Fourth Proportional to 8,820.56, 13,219.08 and 4,659.60

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Solution

The fourth proportional to 8,820.56, 13,219.08 and 4,659.60 is: 6,983.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.56 : 13,219.08 = 4,659.60 : x
  2. Step 2: Convert to fraction form
    8,820.56/13,219.08 = 4,659.60/x
  3. Step 3: Cross multiply
    8,820.56x = 13,219.08 × 4,659.60
  4. Step 4: Simplify right side
    8,820.56x = 61,595,625.17
  5. Step 5: Solve for x
    x = 61,595,625.17/8,820.56
  6. Step 6: Final answer
    x = 6,983.19

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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.