Home / 13,920.54-19,210.44-7,632.96

Finding the Fourth Proportional to 13,920.54, 19,210.44 and 7,632.96

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Solution

The fourth proportional to 13,920.54, 19,210.44 and 7,632.96 is: 10,533.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920.54 : 19,210.44 = 7,632.96 : x
  2. Step 2: Convert to fraction form
    13,920.54/19,210.44 = 7,632.96/x
  3. Step 3: Cross multiply
    13,920.54x = 19,210.44 × 7,632.96
  4. Step 4: Simplify right side
    13,920.54x = 146,632,520.10
  5. Step 5: Solve for x
    x = 146,632,520.10/13,920.54
  6. Step 6: Final answer
    x = 10,533.54

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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.