Home / 14,653.76-20,220.97-8,280.91

Finding the Fourth Proportional to 14,653.76, 20,220.97 and 8,280.91

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Solution

The fourth proportional to 14,653.76, 20,220.97 and 8,280.91 is: 11,426.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,653.76 : 20,220.97 = 8,280.91 : x
  2. Step 2: Convert to fraction form
    14,653.76/20,220.97 = 8,280.91/x
  3. Step 3: Cross multiply
    14,653.76x = 20,220.97 × 8,280.91
  4. Step 4: Simplify right side
    14,653.76x = 167,448,032.68
  5. Step 5: Solve for x
    x = 167,448,032.68/14,653.76
  6. Step 6: Final answer
    x = 11,426.97

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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.