Home / 10,848.96-16,256.40-8,389.80

Finding the Fourth Proportional to 10,848.96, 16,256.40 and 8,389.80

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Solution

The fourth proportional to 10,848.96, 16,256.40 and 8,389.80 is: 12,571.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,848.96 : 16,256.40 = 8,389.80 : x
  2. Step 2: Convert to fraction form
    10,848.96/16,256.40 = 8,389.80/x
  3. Step 3: Cross multiply
    10,848.96x = 16,256.40 × 8,389.80
  4. Step 4: Simplify right side
    10,848.96x = 136,387,944.72
  5. Step 5: Solve for x
    x = 136,387,944.72/10,848.96
  6. Step 6: Final answer
    x = 12,571.52

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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.