Home / 13,506.40-20,271.60-7,952.80

Finding the Fourth Proportional to 13,506.40, 20,271.60 and 7,952.80

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Solution

The fourth proportional to 13,506.40, 20,271.60 and 7,952.80 is: 11,936.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.40 : 20,271.60 = 7,952.80 : x
  2. Step 2: Convert to fraction form
    13,506.40/20,271.60 = 7,952.80/x
  3. Step 3: Cross multiply
    13,506.40x = 20,271.60 × 7,952.80
  4. Step 4: Simplify right side
    13,506.40x = 161,215,980.48
  5. Step 5: Solve for x
    x = 161,215,980.48/13,506.40
  6. Step 6: Final answer
    x = 11,936.27

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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.