Home / 14,218.08-19,620.64-8,250.28

Finding the Fourth Proportional to 14,218.08, 19,620.64 and 8,250.28

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Solution

The fourth proportional to 14,218.08, 19,620.64 and 8,250.28 is: 11,385.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.08 : 19,620.64 = 8,250.28 : x
  2. Step 2: Convert to fraction form
    14,218.08/19,620.64 = 8,250.28/x
  3. Step 3: Cross multiply
    14,218.08x = 19,620.64 × 8,250.28
  4. Step 4: Simplify right side
    14,218.08x = 161,875,773.78
  5. Step 5: Solve for x
    x = 161,875,773.78/14,218.08
  6. Step 6: Final answer
    x = 11,385.21

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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.