Home / 14,415.39-19,894.55-8,127.63

Finding the Fourth Proportional to 14,415.39, 19,894.55 and 8,127.63

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Solution

The fourth proportional to 14,415.39, 19,894.55 and 8,127.63 is: 11,216.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,415.39 : 19,894.55 = 8,127.63 : x
  2. Step 2: Convert to fraction form
    14,415.39/19,894.55 = 8,127.63/x
  3. Step 3: Cross multiply
    14,415.39x = 19,894.55 × 8,127.63
  4. Step 4: Simplify right side
    14,415.39x = 161,695,500.78
  5. Step 5: Solve for x
    x = 161,695,500.78/14,415.39
  6. Step 6: Final answer
    x = 11,216.87

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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.