Home / 13,632.51-18,812.84-7,664.19

Finding the Fourth Proportional to 13,632.51, 18,812.84 and 7,664.19

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Solution

The fourth proportional to 13,632.51, 18,812.84 and 7,664.19 is: 10,576.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.51 : 18,812.84 = 7,664.19 : x
  2. Step 2: Convert to fraction form
    13,632.51/18,812.84 = 7,664.19/x
  3. Step 3: Cross multiply
    13,632.51x = 18,812.84 × 7,664.19
  4. Step 4: Simplify right side
    13,632.51x = 144,185,199.36
  5. Step 5: Solve for x
    x = 144,185,199.36/13,632.51
  6. Step 6: Final answer
    x = 10,576.57

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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.