Home / 13,100.48-19,638.36-6,520.44

Finding the Fourth Proportional to 13,100.48, 19,638.36 and 6,520.44

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Solution

The fourth proportional to 13,100.48, 19,638.36 and 6,520.44 is: 9,774.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100.48 : 19,638.36 = 6,520.44 : x
  2. Step 2: Convert to fraction form
    13,100.48/19,638.36 = 6,520.44/x
  3. Step 3: Cross multiply
    13,100.48x = 19,638.36 × 6,520.44
  4. Step 4: Simplify right side
    13,100.48x = 128,050,748.08
  5. Step 5: Solve for x
    x = 128,050,748.08/13,100.48
  6. Step 6: Final answer
    x = 9,774.51

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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.