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Finding the Fourth Proportional to 8,959.57, 13,439.34 and 2,803.57

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Solution

The fourth proportional to 8,959.57, 13,439.34 and 2,803.57 is: 4,205.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.57 : 13,439.34 = 2,803.57 : x
  2. Step 2: Convert to fraction form
    8,959.57/13,439.34 = 2,803.57/x
  3. Step 3: Cross multiply
    8,959.57x = 13,439.34 × 2,803.57
  4. Step 4: Simplify right side
    8,959.57x = 37,678,130.44
  5. Step 5: Solve for x
    x = 37,678,130.44/8,959.57
  6. Step 6: Final answer
    x = 4,205.35

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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.