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Finding the Fourth Proportional to 12,570.66, 17,347.41 and 6,905.49

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Solution

The fourth proportional to 12,570.66, 17,347.41 and 6,905.49 is: 9,529.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.66 : 17,347.41 = 6,905.49 : x
  2. Step 2: Convert to fraction form
    12,570.66/17,347.41 = 6,905.49/x
  3. Step 3: Cross multiply
    12,570.66x = 17,347.41 × 6,905.49
  4. Step 4: Simplify right side
    12,570.66x = 119,792,366.28
  5. Step 5: Solve for x
    x = 119,792,366.28/12,570.66
  6. Step 6: Final answer
    x = 9,529.52

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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.