Home / 14,215.10-21,322.73-3,684.40

Finding the Fourth Proportional to 14,215.10, 21,322.73 and 3,684.40

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Solution

The fourth proportional to 14,215.10, 21,322.73 and 3,684.40 is: 5,526.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.10 : 21,322.73 = 3,684.40 : x
  2. Step 2: Convert to fraction form
    14,215.10/21,322.73 = 3,684.40/x
  3. Step 3: Cross multiply
    14,215.10x = 21,322.73 × 3,684.40
  4. Step 4: Simplify right side
    14,215.10x = 78,561,466.41
  5. Step 5: Solve for x
    x = 78,561,466.41/14,215.10
  6. Step 6: Final answer
    x = 5,526.62

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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.