Home / 8,409.08-11,603.34-4,775

Finding the Fourth Proportional to 8,409.08, 11,603.34 and 4,775

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Solution

The fourth proportional to 8,409.08, 11,603.34 and 4,775 is: 6,588.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,409.08 : 11,603.34 = 4,775 : x
  2. Step 2: Convert to fraction form
    8,409.08/11,603.34 = 4,775/x
  3. Step 3: Cross multiply
    8,409.08x = 11,603.34 × 4,775
  4. Step 4: Simplify right side
    8,409.08x = 55,405,948.50
  5. Step 5: Solve for x
    x = 55,405,948.50/8,409.08
  6. Step 6: Final answer
    x = 6,588.82

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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.