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Finding the Fourth Proportional to 6,918.02, 9,549.72 and 5,239.43

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Solution

The fourth proportional to 6,918.02, 9,549.72 and 5,239.43 is: 7,232.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.02 : 9,549.72 = 5,239.43 : x
  2. Step 2: Convert to fraction form
    6,918.02/9,549.72 = 5,239.43/x
  3. Step 3: Cross multiply
    6,918.02x = 9,549.72 × 5,239.43
  4. Step 4: Simplify right side
    6,918.02x = 50,035,041.71
  5. Step 5: Solve for x
    x = 50,035,041.71/6,918.02
  6. Step 6: Final answer
    x = 7,232.57

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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.