Home / 8,905.57-13,362.95-3,911.45

Finding the Fourth Proportional to 8,905.57, 13,362.95 and 3,911.45

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Solution

The fourth proportional to 8,905.57, 13,362.95 and 3,911.45 is: 5,869.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.57 : 13,362.95 = 3,911.45 : x
  2. Step 2: Convert to fraction form
    8,905.57/13,362.95 = 3,911.45/x
  3. Step 3: Cross multiply
    8,905.57x = 13,362.95 × 3,911.45
  4. Step 4: Simplify right side
    8,905.57x = 52,268,452.14
  5. Step 5: Solve for x
    x = 52,268,452.14/8,905.57
  6. Step 6: Final answer
    x = 5,869.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.