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Finding the Fourth Proportional to 12,907.78, 19,349.25 and 7,060.29

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Solution

The fourth proportional to 12,907.78, 19,349.25 and 7,060.29 is: 10,583.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,907.78 : 19,349.25 = 7,060.29 : x
  2. Step 2: Convert to fraction form
    12,907.78/19,349.25 = 7,060.29/x
  3. Step 3: Cross multiply
    12,907.78x = 19,349.25 × 7,060.29
  4. Step 4: Simplify right side
    12,907.78x = 136,611,331.24
  5. Step 5: Solve for x
    x = 136,611,331.24/12,907.78
  6. Step 6: Final answer
    x = 10,583.64

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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.