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Finding the Fourth Proportional to 8,703.53, 13,056.73 and 2,858.77

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Solution

The fourth proportional to 8,703.53, 13,056.73 and 2,858.77 is: 4,288.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,703.53 : 13,056.73 = 2,858.77 : x
  2. Step 2: Convert to fraction form
    8,703.53/13,056.73 = 2,858.77/x
  3. Step 3: Cross multiply
    8,703.53x = 13,056.73 × 2,858.77
  4. Step 4: Simplify right side
    8,703.53x = 37,326,197.20
  5. Step 5: Solve for x
    x = 37,326,197.20/8,703.53
  6. Step 6: Final answer
    x = 4,288.63

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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.