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Finding the Fourth Proportional to 12,704.71, 19,045.71 and 6,461.23

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Solution

The fourth proportional to 12,704.71, 19,045.71 and 6,461.23 is: 9,686.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,704.71 : 19,045.71 = 6,461.23 : x
  2. Step 2: Convert to fraction form
    12,704.71/19,045.71 = 6,461.23/x
  3. Step 3: Cross multiply
    12,704.71x = 19,045.71 × 6,461.23
  4. Step 4: Simplify right side
    12,704.71x = 123,058,712.82
  5. Step 5: Solve for x
    x = 123,058,712.82/12,704.71
  6. Step 6: Final answer
    x = 9,686.07

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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.