Home / 14,288.05-21,506.59-12,929.68

Finding the Fourth Proportional to 14,288.05, 21,506.59 and 12,929.68

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Solution

The fourth proportional to 14,288.05, 21,506.59 and 12,929.68 is: 19,461.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,288.05 : 21,506.59 = 12,929.68 : x
  2. Step 2: Convert to fraction form
    14,288.05/21,506.59 = 12,929.68/x
  3. Step 3: Cross multiply
    14,288.05x = 21,506.59 × 12,929.68
  4. Step 4: Simplify right side
    14,288.05x = 278,073,326.59
  5. Step 5: Solve for x
    x = 278,073,326.59/14,288.05
  6. Step 6: Final answer
    x = 19,461.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.