Home / 13,704.84-20,506.74-9,690.36

Finding the Fourth Proportional to 13,704.84, 20,506.74 and 9,690.36

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Solution

The fourth proportional to 13,704.84, 20,506.74 and 9,690.36 is: 14,499.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.84 : 20,506.74 = 9,690.36 : x
  2. Step 2: Convert to fraction form
    13,704.84/20,506.74 = 9,690.36/x
  3. Step 3: Cross multiply
    13,704.84x = 20,506.74 × 9,690.36
  4. Step 4: Simplify right side
    13,704.84x = 198,717,693.03
  5. Step 5: Solve for x
    x = 198,717,693.03/13,704.84
  6. Step 6: Final answer
    x = 14,499.82

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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.