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Finding the Fourth Proportional to 12,630.42, 17,430.03 and 7,328.37

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Solution

The fourth proportional to 12,630.42, 17,430.03 and 7,328.37 is: 10,113.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630.42 : 17,430.03 = 7,328.37 : x
  2. Step 2: Convert to fraction form
    12,630.42/17,430.03 = 7,328.37/x
  3. Step 3: Cross multiply
    12,630.42x = 17,430.03 × 7,328.37
  4. Step 4: Simplify right side
    12,630.42x = 127,733,708.95
  5. Step 5: Solve for x
    x = 127,733,708.95/12,630.42
  6. Step 6: Final answer
    x = 10,113.18

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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.