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Finding the Fourth Proportional to 7,347.46, 10,139.29 and 4,203.45

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Solution

The fourth proportional to 7,347.46, 10,139.29 and 4,203.45 is: 5,800.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,347.46 : 10,139.29 = 4,203.45 : x
  2. Step 2: Convert to fraction form
    7,347.46/10,139.29 = 4,203.45/x
  3. Step 3: Cross multiply
    7,347.46x = 10,139.29 × 4,203.45
  4. Step 4: Simplify right side
    7,347.46x = 42,619,998.55
  5. Step 5: Solve for x
    x = 42,619,998.55/7,347.46
  6. Step 6: Final answer
    x = 5,800.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.