Home / 11,223.01-15,486.84-6,507.60

Finding the Fourth Proportional to 11,223.01, 15,486.84 and 6,507.60

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Solution

The fourth proportional to 11,223.01, 15,486.84 and 6,507.60 is: 8,979.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,223.01 : 15,486.84 = 6,507.60 : x
  2. Step 2: Convert to fraction form
    11,223.01/15,486.84 = 6,507.60/x
  3. Step 3: Cross multiply
    11,223.01x = 15,486.84 × 6,507.60
  4. Step 4: Simplify right side
    11,223.01x = 100,782,159.98
  5. Step 5: Solve for x
    x = 100,782,159.98/11,223.01
  6. Step 6: Final answer
    x = 8,979.96

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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.