Home / 14,415.69-19,892.88-8,127.66

Finding the Fourth Proportional to 14,415.69, 19,892.88 and 8,127.66

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Solution

The fourth proportional to 14,415.69, 19,892.88 and 8,127.66 is: 11,215.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,415.69 : 19,892.88 = 8,127.66 : x
  2. Step 2: Convert to fraction form
    14,415.69/19,892.88 = 8,127.66/x
  3. Step 3: Cross multiply
    14,415.69x = 19,892.88 × 8,127.66
  4. Step 4: Simplify right side
    14,415.69x = 161,682,565.06
  5. Step 5: Solve for x
    x = 161,682,565.06/14,415.69
  6. Step 6: Final answer
    x = 11,215.74

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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.