Home / 12,125.72-16,733.31-6,820.53

Finding the Fourth Proportional to 12,125.72, 16,733.31 and 6,820.53

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Solution

The fourth proportional to 12,125.72, 16,733.31 and 6,820.53 is: 9,412.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.72 : 16,733.31 = 6,820.53 : x
  2. Step 2: Convert to fraction form
    12,125.72/16,733.31 = 6,820.53/x
  3. Step 3: Cross multiply
    12,125.72x = 16,733.31 × 6,820.53
  4. Step 4: Simplify right side
    12,125.72x = 114,130,059.91
  5. Step 5: Solve for x
    x = 114,130,059.91/12,125.72
  6. Step 6: Final answer
    x = 9,412.23

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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.