Home / 8,791.06-12,135.80-5,607.76

Finding the Fourth Proportional to 8,791.06, 12,135.80 and 5,607.76

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Solution

The fourth proportional to 8,791.06, 12,135.80 and 5,607.76 is: 7,741.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.06 : 12,135.80 = 5,607.76 : x
  2. Step 2: Convert to fraction form
    8,791.06/12,135.80 = 5,607.76/x
  3. Step 3: Cross multiply
    8,791.06x = 12,135.80 × 5,607.76
  4. Step 4: Simplify right side
    8,791.06x = 68,054,653.81
  5. Step 5: Solve for x
    x = 68,054,653.81/8,791.06
  6. Step 6: Final answer
    x = 7,741.35

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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.