Home / 7,701.48-10,629.83-6,440.38

Finding the Fourth Proportional to 7,701.48, 10,629.83 and 6,440.38

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Solution

The fourth proportional to 7,701.48, 10,629.83 and 6,440.38 is: 8,889.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,701.48 : 10,629.83 = 6,440.38 : x
  2. Step 2: Convert to fraction form
    7,701.48/10,629.83 = 6,440.38/x
  3. Step 3: Cross multiply
    7,701.48x = 10,629.83 × 6,440.38
  4. Step 4: Simplify right side
    7,701.48x = 68,460,134.06
  5. Step 5: Solve for x
    x = 68,460,134.06/7,701.48
  6. Step 6: Final answer
    x = 8,889.22

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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.