Home / 9,138.25-12,610.79-4,946.50

Finding the Fourth Proportional to 9,138.25, 12,610.79 and 4,946.50

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Solution

The fourth proportional to 9,138.25, 12,610.79 and 4,946.50 is: 6,826.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138.25 : 12,610.79 = 4,946.50 : x
  2. Step 2: Convert to fraction form
    9,138.25/12,610.79 = 4,946.50/x
  3. Step 3: Cross multiply
    9,138.25x = 12,610.79 × 4,946.50
  4. Step 4: Simplify right side
    9,138.25x = 62,379,272.74
  5. Step 5: Solve for x
    x = 62,379,272.74/9,138.25
  6. Step 6: Final answer
    x = 6,826.17

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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.