Home / 15,831.06-23,728.04-8,807.76

Finding the Fourth Proportional to 15,831.06, 23,728.04 and 8,807.76

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Solution

The fourth proportional to 15,831.06, 23,728.04 and 8,807.76 is: 13,201.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,831.06 : 23,728.04 = 8,807.76 : x
  2. Step 2: Convert to fraction form
    15,831.06/23,728.04 = 8,807.76/x
  3. Step 3: Cross multiply
    15,831.06x = 23,728.04 × 8,807.76
  4. Step 4: Simplify right side
    15,831.06x = 208,990,881.59
  5. Step 5: Solve for x
    x = 208,990,881.59/15,831.06
  6. Step 6: Final answer
    x = 13,201.32

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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.