Home / 14,123.71-21,188.99-4,262.40

Finding the Fourth Proportional to 14,123.71, 21,188.99 and 4,262.40

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Solution

The fourth proportional to 14,123.71, 21,188.99 and 4,262.40 is: 6,394.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.71 : 21,188.99 = 4,262.40 : x
  2. Step 2: Convert to fraction form
    14,123.71/21,188.99 = 4,262.40/x
  3. Step 3: Cross multiply
    14,123.71x = 21,188.99 × 4,262.40
  4. Step 4: Simplify right side
    14,123.71x = 90,315,961.63
  5. Step 5: Solve for x
    x = 90,315,961.63/14,123.71
  6. Step 6: Final answer
    x = 6,394.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.