Home / 8,279.51-11,427.35-4,745.07

Finding the Fourth Proportional to 8,279.51, 11,427.35 and 4,745.07

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Solution

The fourth proportional to 8,279.51, 11,427.35 and 4,745.07 is: 6,549.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.51 : 11,427.35 = 4,745.07 : x
  2. Step 2: Convert to fraction form
    8,279.51/11,427.35 = 4,745.07/x
  3. Step 3: Cross multiply
    8,279.51x = 11,427.35 × 4,745.07
  4. Step 4: Simplify right side
    8,279.51x = 54,223,551.94
  5. Step 5: Solve for x
    x = 54,223,551.94/8,279.51
  6. Step 6: Final answer
    x = 6,549.13

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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.