Home / 13,389.28-20,087.88-4,625.08

Finding the Fourth Proportional to 13,389.28, 20,087.88 and 4,625.08

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Solution

The fourth proportional to 13,389.28, 20,087.88 and 4,625.08 is: 6,938.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.28 : 20,087.88 = 4,625.08 : x
  2. Step 2: Convert to fraction form
    13,389.28/20,087.88 = 4,625.08/x
  3. Step 3: Cross multiply
    13,389.28x = 20,087.88 × 4,625.08
  4. Step 4: Simplify right side
    13,389.28x = 92,908,052.03
  5. Step 5: Solve for x
    x = 92,908,052.03/13,389.28
  6. Step 6: Final answer
    x = 6,938.99

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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.