Home / 11,925.98-16,457.43-6,620.69

Finding the Fourth Proportional to 11,925.98, 16,457.43 and 6,620.69

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Solution

The fourth proportional to 11,925.98, 16,457.43 and 6,620.69 is: 9,136.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.98 : 16,457.43 = 6,620.69 : x
  2. Step 2: Convert to fraction form
    11,925.98/16,457.43 = 6,620.69/x
  3. Step 3: Cross multiply
    11,925.98x = 16,457.43 × 6,620.69
  4. Step 4: Simplify right side
    11,925.98x = 108,959,542.23
  5. Step 5: Solve for x
    x = 108,959,542.23/11,925.98
  6. Step 6: Final answer
    x = 9,136.32

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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.