Home / 11,161.02-15,402.69-6,685.50

Finding the Fourth Proportional to 11,161.02, 15,402.69 and 6,685.50

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Solution

The fourth proportional to 11,161.02, 15,402.69 and 6,685.50 is: 9,226.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.02 : 15,402.69 = 6,685.50 : x
  2. Step 2: Convert to fraction form
    11,161.02/15,402.69 = 6,685.50/x
  3. Step 3: Cross multiply
    11,161.02x = 15,402.69 × 6,685.50
  4. Step 4: Simplify right side
    11,161.02x = 102,974,684.00
  5. Step 5: Solve for x
    x = 102,974,684.00/11,161.02
  6. Step 6: Final answer
    x = 9,226.28

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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.