Home / 11,021.48-16,518.16-5,165.18

Finding the Fourth Proportional to 11,021.48, 16,518.16 and 5,165.18

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Solution

The fourth proportional to 11,021.48, 16,518.16 and 5,165.18 is: 7,741.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.48 : 16,518.16 = 5,165.18 : x
  2. Step 2: Convert to fraction form
    11,021.48/16,518.16 = 5,165.18/x
  3. Step 3: Cross multiply
    11,021.48x = 16,518.16 × 5,165.18
  4. Step 4: Simplify right side
    11,021.48x = 85,319,269.67
  5. Step 5: Solve for x
    x = 85,319,269.67/11,021.48
  6. Step 6: Final answer
    x = 7,741.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.