Home / 13,013.70-19,506.57-5,621.64

Finding the Fourth Proportional to 13,013.70, 19,506.57 and 5,621.64

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Solution

The fourth proportional to 13,013.70, 19,506.57 and 5,621.64 is: 8,426.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.70 : 19,506.57 = 5,621.64 : x
  2. Step 2: Convert to fraction form
    13,013.70/19,506.57 = 5,621.64/x
  3. Step 3: Cross multiply
    13,013.70x = 19,506.57 × 5,621.64
  4. Step 4: Simplify right side
    13,013.70x = 109,658,914.17
  5. Step 5: Solve for x
    x = 109,658,914.17/13,013.70
  6. Step 6: Final answer
    x = 8,426.42

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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.