Home / 14,003.88-21,005.81-3,615.63

Finding the Fourth Proportional to 14,003.88, 21,005.81 and 3,615.63

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Solution

The fourth proportional to 14,003.88, 21,005.81 and 3,615.63 is: 5,423.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,003.88 : 21,005.81 = 3,615.63 : x
  2. Step 2: Convert to fraction form
    14,003.88/21,005.81 = 3,615.63/x
  3. Step 3: Cross multiply
    14,003.88x = 21,005.81 × 3,615.63
  4. Step 4: Simplify right side
    14,003.88x = 75,949,236.81
  5. Step 5: Solve for x
    x = 75,949,236.81/14,003.88
  6. Step 6: Final answer
    x = 5,423.44

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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.