Home / 14,254.40-21,392.76-11,487.80

Finding the Fourth Proportional to 14,254.40, 21,392.76 and 11,487.80

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Solution

The fourth proportional to 14,254.40, 21,392.76 and 11,487.80 is: 17,240.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,254.40 : 21,392.76 = 11,487.80 : x
  2. Step 2: Convert to fraction form
    14,254.40/21,392.76 = 11,487.80/x
  3. Step 3: Cross multiply
    14,254.40x = 21,392.76 × 11,487.80
  4. Step 4: Simplify right side
    14,254.40x = 245,755,748.33
  5. Step 5: Solve for x
    x = 245,755,748.33/14,254.40
  6. Step 6: Final answer
    x = 17,240.69

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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.