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Finding the Fourth Proportional to 6,503.51, 9,755.54 and 5,415.55

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Solution

The fourth proportional to 6,503.51, 9,755.54 and 5,415.55 is: 8,123.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,503.51 : 9,755.54 = 5,415.55 : x
  2. Step 2: Convert to fraction form
    6,503.51/9,755.54 = 5,415.55/x
  3. Step 3: Cross multiply
    6,503.51x = 9,755.54 × 5,415.55
  4. Step 4: Simplify right side
    6,503.51x = 52,831,583.49
  5. Step 5: Solve for x
    x = 52,831,583.49/6,503.51
  6. Step 6: Final answer
    x = 8,123.55

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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.