Home / 8,127.14-11,215.67-4,981.50

Finding the Fourth Proportional to 8,127.14, 11,215.67 and 4,981.50

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Solution

The fourth proportional to 8,127.14, 11,215.67 and 4,981.50 is: 6,874.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.14 : 11,215.67 = 4,981.50 : x
  2. Step 2: Convert to fraction form
    8,127.14/11,215.67 = 4,981.50/x
  3. Step 3: Cross multiply
    8,127.14x = 11,215.67 × 4,981.50
  4. Step 4: Simplify right side
    8,127.14x = 55,870,835.20
  5. Step 5: Solve for x
    x = 55,870,835.20/8,127.14
  6. Step 6: Final answer
    x = 6,874.60

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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.