Home / 14,103.03-21,155.95-5,220.74

Finding the Fourth Proportional to 14,103.03, 21,155.95 and 5,220.74

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Solution

The fourth proportional to 14,103.03, 21,155.95 and 5,220.74 is: 7,831.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,103.03 : 21,155.95 = 5,220.74 : x
  2. Step 2: Convert to fraction form
    14,103.03/21,155.95 = 5,220.74/x
  3. Step 3: Cross multiply
    14,103.03x = 21,155.95 × 5,220.74
  4. Step 4: Simplify right side
    14,103.03x = 110,449,608.62
  5. Step 5: Solve for x
    x = 110,449,608.62/14,103.03
  6. Step 6: Final answer
    x = 7,831.62

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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.