Home / 13,347.63-20,025.09-3,988.08

Finding the Fourth Proportional to 13,347.63, 20,025.09 and 3,988.08

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Solution

The fourth proportional to 13,347.63, 20,025.09 and 3,988.08 is: 5,983.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.63 : 20,025.09 = 3,988.08 : x
  2. Step 2: Convert to fraction form
    13,347.63/20,025.09 = 3,988.08/x
  3. Step 3: Cross multiply
    13,347.63x = 20,025.09 × 3,988.08
  4. Step 4: Simplify right side
    13,347.63x = 79,861,660.93
  5. Step 5: Solve for x
    x = 79,861,660.93/13,347.63
  6. Step 6: Final answer
    x = 5,983.21

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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.