Home / 11,117.95-16,677.79-3,220.59

Finding the Fourth Proportional to 11,117.95, 16,677.79 and 3,220.59

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Solution

The fourth proportional to 11,117.95, 16,677.79 and 3,220.59 is: 4,831.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.95 : 16,677.79 = 3,220.59 : x
  2. Step 2: Convert to fraction form
    11,117.95/16,677.79 = 3,220.59/x
  3. Step 3: Cross multiply
    11,117.95x = 16,677.79 × 3,220.59
  4. Step 4: Simplify right side
    11,117.95x = 53,712,232.94
  5. Step 5: Solve for x
    x = 53,712,232.94/11,117.95
  6. Step 6: Final answer
    x = 4,831.13

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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.