Home / 14,290.98-19,722.72-8,322.28

Finding the Fourth Proportional to 14,290.98, 19,722.72 and 8,322.28

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Solution

The fourth proportional to 14,290.98, 19,722.72 and 8,322.28 is: 11,485.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,290.98 : 19,722.72 = 8,322.28 : x
  2. Step 2: Convert to fraction form
    14,290.98/19,722.72 = 8,322.28/x
  3. Step 3: Cross multiply
    14,290.98x = 19,722.72 × 8,322.28
  4. Step 4: Simplify right side
    14,290.98x = 164,137,998.20
  5. Step 5: Solve for x
    x = 164,137,998.20/14,290.98
  6. Step 6: Final answer
    x = 11,485.43

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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.