Home / 9,831.20-14,725.20-8,535.20

Finding the Fourth Proportional to 9,831.20, 14,725.20 and 8,535.20

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Solution

The fourth proportional to 9,831.20, 14,725.20 and 8,535.20 is: 12,784.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,831.20 : 14,725.20 = 8,535.20 : x
  2. Step 2: Convert to fraction form
    9,831.20/14,725.20 = 8,535.20/x
  3. Step 3: Cross multiply
    9,831.20x = 14,725.20 × 8,535.20
  4. Step 4: Simplify right side
    9,831.20x = 125,682,527.04
  5. Step 5: Solve for x
    x = 125,682,527.04/9,831.20
  6. Step 6: Final answer
    x = 12,784.05

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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.