Home / 19,185.08-28,783.32-9,831.66

Finding the Fourth Proportional to 19,185.08, 28,783.32 and 9,831.66

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Solution

The fourth proportional to 19,185.08, 28,783.32 and 9,831.66 is: 14,750.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,185.08 : 28,783.32 = 9,831.66 : x
  2. Step 2: Convert to fraction form
    19,185.08/28,783.32 = 9,831.66/x
  3. Step 3: Cross multiply
    19,185.08x = 28,783.32 × 9,831.66
  4. Step 4: Simplify right side
    19,185.08x = 282,987,815.91
  5. Step 5: Solve for x
    x = 282,987,815.91/19,185.08
  6. Step 6: Final answer
    x = 14,750.41

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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.