Home / 8,127.18-12,192.47-4,618.81

Finding the Fourth Proportional to 8,127.18, 12,192.47 and 4,618.81

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Solution

The fourth proportional to 8,127.18, 12,192.47 and 4,618.81 is: 6,929.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.18 : 12,192.47 = 4,618.81 : x
  2. Step 2: Convert to fraction form
    8,127.18/12,192.47 = 4,618.81/x
  3. Step 3: Cross multiply
    8,127.18x = 12,192.47 × 4,618.81
  4. Step 4: Simplify right side
    8,127.18x = 56,314,679.27
  5. Step 5: Solve for x
    x = 56,314,679.27/8,127.18
  6. Step 6: Final answer
    x = 6,929.18

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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.