Home / 12,454.86-18,678.19-4,555.58

Finding the Fourth Proportional to 12,454.86, 18,678.19 and 4,555.58

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Solution

The fourth proportional to 12,454.86, 18,678.19 and 4,555.58 is: 6,831.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454.86 : 18,678.19 = 4,555.58 : x
  2. Step 2: Convert to fraction form
    12,454.86/18,678.19 = 4,555.58/x
  3. Step 3: Cross multiply
    12,454.86x = 18,678.19 × 4,555.58
  4. Step 4: Simplify right side
    12,454.86x = 85,089,988.80
  5. Step 5: Solve for x
    x = 85,089,988.80/12,454.86
  6. Step 6: Final answer
    x = 6,831.87

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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.