Home / 8,156.86-11,258.69-4,800.75

Finding the Fourth Proportional to 8,156.86, 11,258.69 and 4,800.75

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Solution

The fourth proportional to 8,156.86, 11,258.69 and 4,800.75 is: 6,626.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.86 : 11,258.69 = 4,800.75 : x
  2. Step 2: Convert to fraction form
    8,156.86/11,258.69 = 4,800.75/x
  3. Step 3: Cross multiply
    8,156.86x = 11,258.69 × 4,800.75
  4. Step 4: Simplify right side
    8,156.86x = 54,050,156.02
  5. Step 5: Solve for x
    x = 54,050,156.02/8,156.86
  6. Step 6: Final answer
    x = 6,626.34

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Find fourth proportional to 4,078.43, 5,629.35 and 2,400.38
Half scale
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Double scale
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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.