Home / 11,970.18-16,518.69-6,665.00

Finding the Fourth Proportional to 11,970.18, 16,518.69 and 6,665.00

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Solution

The fourth proportional to 11,970.18, 16,518.69 and 6,665.00 is: 9,197.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,970.18 : 16,518.69 = 6,665.00 : x
  2. Step 2: Convert to fraction form
    11,970.18/16,518.69 = 6,665.00/x
  3. Step 3: Cross multiply
    11,970.18x = 16,518.69 × 6,665.00
  4. Step 4: Simplify right side
    11,970.18x = 110,097,049.02
  5. Step 5: Solve for x
    x = 110,097,049.02/11,970.18
  6. Step 6: Final answer
    x = 9,197.61

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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.