Home / 13,548.48-20,308.77-7,692.72

Finding the Fourth Proportional to 13,548.48, 20,308.77 and 7,692.72

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Solution

The fourth proportional to 13,548.48, 20,308.77 and 7,692.72 is: 11,531.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.48 : 20,308.77 = 7,692.72 : x
  2. Step 2: Convert to fraction form
    13,548.48/20,308.77 = 7,692.72/x
  3. Step 3: Cross multiply
    13,548.48x = 20,308.77 × 7,692.72
  4. Step 4: Simplify right side
    13,548.48x = 156,229,681.15
  5. Step 5: Solve for x
    x = 156,229,681.15/13,548.48
  6. Step 6: Final answer
    x = 11,531.16

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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.