Home / 14,878.40-20,532.41-8,163.91

Finding the Fourth Proportional to 14,878.40, 20,532.41 and 8,163.91

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Solution

The fourth proportional to 14,878.40, 20,532.41 and 8,163.91 is: 11,266.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,878.40 : 20,532.41 = 8,163.91 : x
  2. Step 2: Convert to fraction form
    14,878.40/20,532.41 = 8,163.91/x
  3. Step 3: Cross multiply
    14,878.40x = 20,532.41 × 8,163.91
  4. Step 4: Simplify right side
    14,878.40x = 167,624,747.32
  5. Step 5: Solve for x
    x = 167,624,747.32/14,878.40
  6. Step 6: Final answer
    x = 11,266.32

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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.