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Finding the Fourth Proportional to 12,630.12, 17,428.14 and 7,323

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Solution

The fourth proportional to 12,630.12, 17,428.14 and 7,323 is: 10,104.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630.12 : 17,428.14 = 7,323 : x
  2. Step 2: Convert to fraction form
    12,630.12/17,428.14 = 7,323/x
  3. Step 3: Cross multiply
    12,630.12x = 17,428.14 × 7,323
  4. Step 4: Simplify right side
    12,630.12x = 127,626,269.22
  5. Step 5: Solve for x
    x = 127,626,269.22/12,630.12
  6. Step 6: Final answer
    x = 10,104.91

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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.