Home / 13,013.40-19,515.30-4,248.60

Finding the Fourth Proportional to 13,013.40, 19,515.30 and 4,248.60

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Solution

The fourth proportional to 13,013.40, 19,515.30 and 4,248.60 is: 6,371.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.40 : 19,515.30 = 4,248.60 : x
  2. Step 2: Convert to fraction form
    13,013.40/19,515.30 = 4,248.60/x
  3. Step 3: Cross multiply
    13,013.40x = 19,515.30 × 4,248.60
  4. Step 4: Simplify right side
    13,013.40x = 82,912,703.58
  5. Step 5: Solve for x
    x = 82,912,703.58/13,013.40
  6. Step 6: Final answer
    x = 6,371.33

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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.