Home / 14,515.47-20,033.01-8,143.80

Finding the Fourth Proportional to 14,515.47, 20,033.01 and 8,143.80

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Solution

The fourth proportional to 14,515.47, 20,033.01 and 8,143.80 is: 11,239.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.47 : 20,033.01 = 8,143.80 : x
  2. Step 2: Convert to fraction form
    14,515.47/20,033.01 = 8,143.80/x
  3. Step 3: Cross multiply
    14,515.47x = 20,033.01 × 8,143.80
  4. Step 4: Simplify right side
    14,515.47x = 163,144,826.84
  5. Step 5: Solve for x
    x = 163,144,826.84/14,515.47
  6. Step 6: Final answer
    x = 11,239.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.