Home / 12,126.48-16,734.18-7,349.25

Finding the Fourth Proportional to 12,126.48, 16,734.18 and 7,349.25

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Solution

The fourth proportional to 12,126.48, 16,734.18 and 7,349.25 is: 10,141.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.48 : 16,734.18 = 7,349.25 : x
  2. Step 2: Convert to fraction form
    12,126.48/16,734.18 = 7,349.25/x
  3. Step 3: Cross multiply
    12,126.48x = 16,734.18 × 7,349.25
  4. Step 4: Simplify right side
    12,126.48x = 122,983,672.37
  5. Step 5: Solve for x
    x = 122,983,672.37/12,126.48
  6. Step 6: Final answer
    x = 10,141.75

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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.