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Finding the Fourth Proportional to 14,041.76, 21,100.91 and 7,472.66

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Solution

The fourth proportional to 14,041.76, 21,100.91 and 7,472.66 is: 11,229.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,041.76 : 21,100.91 = 7,472.66 : x
  2. Step 2: Convert to fraction form
    14,041.76/21,100.91 = 7,472.66/x
  3. Step 3: Cross multiply
    14,041.76x = 21,100.91 × 7,472.66
  4. Step 4: Simplify right side
    14,041.76x = 157,679,783.25
  5. Step 5: Solve for x
    x = 157,679,783.25/14,041.76
  6. Step 6: Final answer
    x = 11,229.35

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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.