Home / 13,677.48-20,533.91-7,108.25

Finding the Fourth Proportional to 13,677.48, 20,533.91 and 7,108.25

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Solution

The fourth proportional to 13,677.48, 20,533.91 and 7,108.25 is: 10,671.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.48 : 20,533.91 = 7,108.25 : x
  2. Step 2: Convert to fraction form
    13,677.48/20,533.91 = 7,108.25/x
  3. Step 3: Cross multiply
    13,677.48x = 20,533.91 × 7,108.25
  4. Step 4: Simplify right side
    13,677.48x = 145,960,027.55
  5. Step 5: Solve for x
    x = 145,960,027.55/13,677.48
  6. Step 6: Final answer
    x = 10,671.56

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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.