Home / 15,662.21-21,592.94-12,442.71

Finding the Fourth Proportional to 15,662.21, 21,592.94 and 12,442.71

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Solution

The fourth proportional to 15,662.21, 21,592.94 and 12,442.71 is: 17,154.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,662.21 : 21,592.94 = 12,442.71 : x
  2. Step 2: Convert to fraction form
    15,662.21/21,592.94 = 12,442.71/x
  3. Step 3: Cross multiply
    15,662.21x = 21,592.94 × 12,442.71
  4. Step 4: Simplify right side
    15,662.21x = 268,674,674.91
  5. Step 5: Solve for x
    x = 268,674,674.91/15,662.21
  6. Step 6: Final answer
    x = 17,154.33

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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.