Home / 11,925.03-16,457.28-6,890.19

Finding the Fourth Proportional to 11,925.03, 16,457.28 and 6,890.19

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Solution

The fourth proportional to 11,925.03, 16,457.28 and 6,890.19 is: 9,508.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.03 : 16,457.28 = 6,890.19 : x
  2. Step 2: Convert to fraction form
    11,925.03/16,457.28 = 6,890.19/x
  3. Step 3: Cross multiply
    11,925.03x = 16,457.28 × 6,890.19
  4. Step 4: Simplify right side
    11,925.03x = 113,393,786.08
  5. Step 5: Solve for x
    x = 113,393,786.08/11,925.03
  6. Step 6: Final answer
    x = 9,508.89

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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.