Home / 14,186.24-19,577.28-8,218.40

Finding the Fourth Proportional to 14,186.24, 19,577.28 and 8,218.40

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Solution

The fourth proportional to 14,186.24, 19,577.28 and 8,218.40 is: 11,341.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,186.24 : 19,577.28 = 8,218.40 : x
  2. Step 2: Convert to fraction form
    14,186.24/19,577.28 = 8,218.40/x
  3. Step 3: Cross multiply
    14,186.24x = 19,577.28 × 8,218.40
  4. Step 4: Simplify right side
    14,186.24x = 160,893,917.95
  5. Step 5: Solve for x
    x = 160,893,917.95/14,186.24
  6. Step 6: Final answer
    x = 11,341.55

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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.