Home / 12,058.89-16,639.99-6,681.18

Finding the Fourth Proportional to 12,058.89, 16,639.99 and 6,681.18

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Solution

The fourth proportional to 12,058.89, 16,639.99 and 6,681.18 is: 9,219.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,058.89 : 16,639.99 = 6,681.18 : x
  2. Step 2: Convert to fraction form
    12,058.89/16,639.99 = 6,681.18/x
  3. Step 3: Cross multiply
    12,058.89x = 16,639.99 × 6,681.18
  4. Step 4: Simplify right side
    12,058.89x = 111,174,685.19
  5. Step 5: Solve for x
    x = 111,174,685.19/12,058.89
  6. Step 6: Final answer
    x = 9,219.31

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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.