Home / 8,135.64-11,223.85-5,483.90

Finding the Fourth Proportional to 8,135.64, 11,223.85 and 5,483.90

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Solution

The fourth proportional to 8,135.64, 11,223.85 and 5,483.90 is: 7,565.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.64 : 11,223.85 = 5,483.90 : x
  2. Step 2: Convert to fraction form
    8,135.64/11,223.85 = 5,483.90/x
  3. Step 3: Cross multiply
    8,135.64x = 11,223.85 × 5,483.90
  4. Step 4: Simplify right side
    8,135.64x = 61,550,471.02
  5. Step 5: Solve for x
    x = 61,550,471.02/8,135.64
  6. Step 6: Final answer
    x = 7,565.54

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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.