Home / 12,102.21-16,697.75-7,623.72

Finding the Fourth Proportional to 12,102.21, 16,697.75 and 7,623.72

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Solution

The fourth proportional to 12,102.21, 16,697.75 and 7,623.72 is: 10,518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,102.21 : 16,697.75 = 7,623.72 : x
  2. Step 2: Convert to fraction form
    12,102.21/16,697.75 = 7,623.72/x
  3. Step 3: Cross multiply
    12,102.21x = 16,697.75 × 7,623.72
  4. Step 4: Simplify right side
    12,102.21x = 127,298,932.51
  5. Step 5: Solve for x
    x = 127,298,932.51/12,102.21
  6. Step 6: Final answer
    x = 10,518.65

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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.