Home / 9,138.50-12,611.13-4,946.75

Finding the Fourth Proportional to 9,138.50, 12,611.13 and 4,946.75

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Solution

The fourth proportional to 9,138.50, 12,611.13 and 4,946.75 is: 6,826.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138.50 : 12,611.13 = 4,946.75 : x
  2. Step 2: Convert to fraction form
    9,138.50/12,611.13 = 4,946.75/x
  3. Step 3: Cross multiply
    9,138.50x = 12,611.13 × 4,946.75
  4. Step 4: Simplify right side
    9,138.50x = 62,384,107.33
  5. Step 5: Solve for x
    x = 62,384,107.33/9,138.50
  6. Step 6: Final answer
    x = 6,826.52

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Half scale
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Double scale
Find fourth proportional to 9,139.50, 12,612.51 and 4,947.75
Similar ratio
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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.