Home / 14,129.83-19,491.80-8,383.95

Finding the Fourth Proportional to 14,129.83, 19,491.80 and 8,383.95

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Solution

The fourth proportional to 14,129.83, 19,491.80 and 8,383.95 is: 11,565.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.83 : 19,491.80 = 8,383.95 : x
  2. Step 2: Convert to fraction form
    14,129.83/19,491.80 = 8,383.95/x
  3. Step 3: Cross multiply
    14,129.83x = 19,491.80 × 8,383.95
  4. Step 4: Simplify right side
    14,129.83x = 163,418,297.57
  5. Step 5: Solve for x
    x = 163,418,297.57/14,129.83
  6. Step 6: Final answer
    x = 11,565.48

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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.