Home / 15,056.85-20,776.89-8,342.31

Finding the Fourth Proportional to 15,056.85, 20,776.89 and 8,342.31

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Solution

The fourth proportional to 15,056.85, 20,776.89 and 8,342.31 is: 11,511.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,056.85 : 20,776.89 = 8,342.31 : x
  2. Step 2: Convert to fraction form
    15,056.85/20,776.89 = 8,342.31/x
  3. Step 3: Cross multiply
    15,056.85x = 20,776.89 × 8,342.31
  4. Step 4: Simplify right side
    15,056.85x = 173,327,257.22
  5. Step 5: Solve for x
    x = 173,327,257.22/15,056.85
  6. Step 6: Final answer
    x = 11,511.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.