Home / 12,549.36-18,812.87-4,763.64

Finding the Fourth Proportional to 12,549.36, 18,812.87 and 4,763.64

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Solution

The fourth proportional to 12,549.36, 18,812.87 and 4,763.64 is: 7,141.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.36 : 18,812.87 = 4,763.64 : x
  2. Step 2: Convert to fraction form
    12,549.36/18,812.87 = 4,763.64/x
  3. Step 3: Cross multiply
    12,549.36x = 18,812.87 × 4,763.64
  4. Step 4: Simplify right side
    12,549.36x = 89,617,804.64
  5. Step 5: Solve for x
    x = 89,617,804.64/12,549.36
  6. Step 6: Final answer
    x = 7,141.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.