Home / 14,238.87-21,360.35-4,378.97

Finding the Fourth Proportional to 14,238.87, 21,360.35 and 4,378.97

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Solution

The fourth proportional to 14,238.87, 21,360.35 and 4,378.97 is: 6,569.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,238.87 : 21,360.35 = 4,378.97 : x
  2. Step 2: Convert to fraction form
    14,238.87/21,360.35 = 4,378.97/x
  3. Step 3: Cross multiply
    14,238.87x = 21,360.35 × 4,378.97
  4. Step 4: Simplify right side
    14,238.87x = 93,536,363.35
  5. Step 5: Solve for x
    x = 93,536,363.35/14,238.87
  6. Step 6: Final answer
    x = 6,569.09

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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.