Home / 14,991.13-20,685.94-8,276.23

Finding the Fourth Proportional to 14,991.13, 20,685.94 and 8,276.23

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Solution

The fourth proportional to 14,991.13, 20,685.94 and 8,276.23 is: 11,420.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,991.13 : 20,685.94 = 8,276.23 : x
  2. Step 2: Convert to fraction form
    14,991.13/20,685.94 = 8,276.23/x
  3. Step 3: Cross multiply
    14,991.13x = 20,685.94 × 8,276.23
  4. Step 4: Simplify right side
    14,991.13x = 171,201,597.21
  5. Step 5: Solve for x
    x = 171,201,597.21/14,991.13
  6. Step 6: Final answer
    x = 11,420.19

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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.