Home / 13,297.40-19,955.70-5,511.80

Finding the Fourth Proportional to 13,297.40, 19,955.70 and 5,511.80

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Solution

The fourth proportional to 13,297.40, 19,955.70 and 5,511.80 is: 8,271.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.40 : 19,955.70 = 5,511.80 : x
  2. Step 2: Convert to fraction form
    13,297.40/19,955.70 = 5,511.80/x
  3. Step 3: Cross multiply
    13,297.40x = 19,955.70 × 5,511.80
  4. Step 4: Simplify right side
    13,297.40x = 109,991,827.26
  5. Step 5: Solve for x
    x = 109,991,827.26/13,297.40
  6. Step 6: Final answer
    x = 8,271.68

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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.