Home / 8,906.06-12,313.85-7,798.90

Finding the Fourth Proportional to 8,906.06, 12,313.85 and 7,798.90

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Solution

The fourth proportional to 8,906.06, 12,313.85 and 7,798.90 is: 10,783.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.06 : 12,313.85 = 7,798.90 : x
  2. Step 2: Convert to fraction form
    8,906.06/12,313.85 = 7,798.90/x
  3. Step 3: Cross multiply
    8,906.06x = 12,313.85 × 7,798.90
  4. Step 4: Simplify right side
    8,906.06x = 96,034,484.77
  5. Step 5: Solve for x
    x = 96,034,484.77/8,906.06
  6. Step 6: Final answer
    x = 10,783.05

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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.