Home / 12,686.36-17,504.01-7,653.56

Finding the Fourth Proportional to 12,686.36, 17,504.01 and 7,653.56

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Solution

The fourth proportional to 12,686.36, 17,504.01 and 7,653.56 is: 10,560.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686.36 : 17,504.01 = 7,653.56 : x
  2. Step 2: Convert to fraction form
    12,686.36/17,504.01 = 7,653.56/x
  3. Step 3: Cross multiply
    12,686.36x = 17,504.01 × 7,653.56
  4. Step 4: Simplify right side
    12,686.36x = 133,967,903.26
  5. Step 5: Solve for x
    x = 133,967,903.26/12,686.36
  6. Step 6: Final answer
    x = 10,560.00

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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.