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Finding the Fourth Proportional to 12,356.00, 17,050.91 and 6,978.66

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Solution

The fourth proportional to 12,356.00, 17,050.91 and 6,978.66 is: 9,630.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.00 : 17,050.91 = 6,978.66 : x
  2. Step 2: Convert to fraction form
    12,356.00/17,050.91 = 6,978.66/x
  3. Step 3: Cross multiply
    12,356.00x = 17,050.91 × 6,978.66
  4. Step 4: Simplify right side
    12,356.00x = 118,992,463.63
  5. Step 5: Solve for x
    x = 118,992,463.63/12,356.00
  6. Step 6: Final answer
    x = 9,630.34

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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.