Home / 15,831.20-23,727.60-7,056.80

Finding the Fourth Proportional to 15,831.20, 23,727.60 and 7,056.80

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Solution

The fourth proportional to 15,831.20, 23,727.60 and 7,056.80 is: 10,576.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,831.20 : 23,727.60 = 7,056.80 : x
  2. Step 2: Convert to fraction form
    15,831.20/23,727.60 = 7,056.80/x
  3. Step 3: Cross multiply
    15,831.20x = 23,727.60 × 7,056.80
  4. Step 4: Simplify right side
    15,831.20x = 167,440,927.68
  5. Step 5: Solve for x
    x = 167,440,927.68/15,831.20
  6. Step 6: Final answer
    x = 10,576.64

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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.