Home / 11,925.43-16,457.05-6,620.47

Finding the Fourth Proportional to 11,925.43, 16,457.05 and 6,620.47

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Solution

The fourth proportional to 11,925.43, 16,457.05 and 6,620.47 is: 9,136.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.43 : 16,457.05 = 6,620.47 : x
  2. Step 2: Convert to fraction form
    11,925.43/16,457.05 = 6,620.47/x
  3. Step 3: Cross multiply
    11,925.43x = 16,457.05 × 6,620.47
  4. Step 4: Simplify right side
    11,925.43x = 108,953,405.81
  5. Step 5: Solve for x
    x = 108,953,405.81/11,925.43
  6. Step 6: Final answer
    x = 9,136.22

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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.