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Finding the Fourth Proportional to 12,701.00, 19,002.30 and 8,521.10

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Solution

The fourth proportional to 12,701.00, 19,002.30 and 8,521.10 is: 12,748.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,701.00 : 19,002.30 = 8,521.10 : x
  2. Step 2: Convert to fraction form
    12,701.00/19,002.30 = 8,521.10/x
  3. Step 3: Cross multiply
    12,701.00x = 19,002.30 × 8,521.10
  4. Step 4: Simplify right side
    12,701.00x = 161,920,442.82
  5. Step 5: Solve for x
    x = 161,920,442.82/12,701.00
  6. Step 6: Final answer
    x = 12,748.63

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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.