Home / 14,139.84-21,209.67-3,751.50

Finding the Fourth Proportional to 14,139.84, 21,209.67 and 3,751.50

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Solution

The fourth proportional to 14,139.84, 21,209.67 and 3,751.50 is: 5,627.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.84 : 21,209.67 = 3,751.50 : x
  2. Step 2: Convert to fraction form
    14,139.84/21,209.67 = 3,751.50/x
  3. Step 3: Cross multiply
    14,139.84x = 21,209.67 × 3,751.50
  4. Step 4: Simplify right side
    14,139.84x = 79,568,077.01
  5. Step 5: Solve for x
    x = 79,568,077.01/14,139.84
  6. Step 6: Final answer
    x = 5,627.23

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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.