Home / 7,941.16-11,921.10-4,656.76

Finding the Fourth Proportional to 7,941.16, 11,921.10 and 4,656.76

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Solution

The fourth proportional to 7,941.16, 11,921.10 and 4,656.76 is: 6,990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,941.16 : 11,921.10 = 4,656.76 : x
  2. Step 2: Convert to fraction form
    7,941.16/11,921.10 = 4,656.76/x
  3. Step 3: Cross multiply
    7,941.16x = 11,921.10 × 4,656.76
  4. Step 4: Simplify right side
    7,941.16x = 55,513,701.64
  5. Step 5: Solve for x
    x = 55,513,701.64/7,941.16
  6. Step 6: Final answer
    x = 6,990.63

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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.