Home / 14,487.80-21,726.30-5,720.90

Finding the Fourth Proportional to 14,487.80, 21,726.30 and 5,720.90

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Solution

The fourth proportional to 14,487.80, 21,726.30 and 5,720.90 is: 8,579.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,487.80 : 21,726.30 = 5,720.90 : x
  2. Step 2: Convert to fraction form
    14,487.80/21,726.30 = 5,720.90/x
  3. Step 3: Cross multiply
    14,487.80x = 21,726.30 × 5,720.90
  4. Step 4: Simplify right side
    14,487.80x = 124,293,989.67
  5. Step 5: Solve for x
    x = 124,293,989.67/14,487.80
  6. Step 6: Final answer
    x = 8,579.22

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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.