Home / 14,103.95-21,155.88-4,243.22

Finding the Fourth Proportional to 14,103.95, 21,155.88 and 4,243.22

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Solution

The fourth proportional to 14,103.95, 21,155.88 and 4,243.22 is: 6,364.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,103.95 : 21,155.88 = 4,243.22 : x
  2. Step 2: Convert to fraction form
    14,103.95/21,155.88 = 4,243.22/x
  3. Step 3: Cross multiply
    14,103.95x = 21,155.88 × 4,243.22
  4. Step 4: Simplify right side
    14,103.95x = 89,768,947.35
  5. Step 5: Solve for x
    x = 89,768,947.35/14,103.95
  6. Step 6: Final answer
    x = 6,364.81

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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.