Home / 10,831.20-16,235.60-5,890.40

Finding the Fourth Proportional to 10,831.20, 16,235.60 and 5,890.40

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Solution

The fourth proportional to 10,831.20, 16,235.60 and 5,890.40 is: 8,829.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,831.20 : 16,235.60 = 5,890.40 : x
  2. Step 2: Convert to fraction form
    10,831.20/16,235.60 = 5,890.40/x
  3. Step 3: Cross multiply
    10,831.20x = 16,235.60 × 5,890.40
  4. Step 4: Simplify right side
    10,831.20x = 95,634,178.24
  5. Step 5: Solve for x
    x = 95,634,178.24/10,831.20
  6. Step 6: Final answer
    x = 8,829.51

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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.