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Finding the Fourth Proportional to 14,542.62, 21,820.41 and 7,615.50

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Solution

The fourth proportional to 14,542.62, 21,820.41 and 7,615.50 is: 11,426.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,542.62 : 21,820.41 = 7,615.50 : x
  2. Step 2: Convert to fraction form
    14,542.62/21,820.41 = 7,615.50/x
  3. Step 3: Cross multiply
    14,542.62x = 21,820.41 × 7,615.50
  4. Step 4: Simplify right side
    14,542.62x = 166,173,332.36
  5. Step 5: Solve for x
    x = 166,173,332.36/14,542.62
  6. Step 6: Final answer
    x = 11,426.64

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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.