Home / 11,925.61-16,457.88-6,620.50

Finding the Fourth Proportional to 11,925.61, 16,457.88 and 6,620.50

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Solution

The fourth proportional to 11,925.61, 16,457.88 and 6,620.50 is: 9,136.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.61 : 16,457.88 = 6,620.50 : x
  2. Step 2: Convert to fraction form
    11,925.61/16,457.88 = 6,620.50/x
  3. Step 3: Cross multiply
    11,925.61x = 16,457.88 × 6,620.50
  4. Step 4: Simplify right side
    11,925.61x = 108,959,394.54
  5. Step 5: Solve for x
    x = 108,959,394.54/11,925.61
  6. Step 6: Final answer
    x = 9,136.59

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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.