Home / 13,632.36-18,812.15-7,664.58

Finding the Fourth Proportional to 13,632.36, 18,812.15 and 7,664.58

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Solution

The fourth proportional to 13,632.36, 18,812.15 and 7,664.58 is: 10,576.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.36 : 18,812.15 = 7,664.58 : x
  2. Step 2: Convert to fraction form
    13,632.36/18,812.15 = 7,664.58/x
  3. Step 3: Cross multiply
    13,632.36x = 18,812.15 × 7,664.58
  4. Step 4: Simplify right side
    13,632.36x = 144,187,228.65
  5. Step 5: Solve for x
    x = 144,187,228.65/13,632.36
  6. Step 6: Final answer
    x = 10,576.84

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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.