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Finding the Fourth Proportional to 6,881.74, 10,347.51 and 6,340.45

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Solution

The fourth proportional to 6,881.74, 10,347.51 and 6,340.45 is: 9,533.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,881.74 : 10,347.51 = 6,340.45 : x
  2. Step 2: Convert to fraction form
    6,881.74/10,347.51 = 6,340.45/x
  3. Step 3: Cross multiply
    6,881.74x = 10,347.51 × 6,340.45
  4. Step 4: Simplify right side
    6,881.74x = 65,607,869.78
  5. Step 5: Solve for x
    x = 65,607,869.78/6,881.74
  6. Step 6: Final answer
    x = 9,533.62

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1.5x scale

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.