Home / 13,011.21-19,524.15-12,905.46

Finding the Fourth Proportional to 13,011.21, 19,524.15 and 12,905.46

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Solution

The fourth proportional to 13,011.21, 19,524.15 and 12,905.46 is: 19,365.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.21 : 19,524.15 = 12,905.46 : x
  2. Step 2: Convert to fraction form
    13,011.21/19,524.15 = 12,905.46/x
  3. Step 3: Cross multiply
    13,011.21x = 19,524.15 × 12,905.46
  4. Step 4: Simplify right side
    13,011.21x = 251,968,136.86
  5. Step 5: Solve for x
    x = 251,968,136.86/13,011.21
  6. Step 6: Final answer
    x = 19,365.47

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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.