Home / 13,451.96-20,178.04-4,686.86

Finding the Fourth Proportional to 13,451.96, 20,178.04 and 4,686.86

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Solution

The fourth proportional to 13,451.96, 20,178.04 and 4,686.86 is: 7,030.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.96 : 20,178.04 = 4,686.86 : x
  2. Step 2: Convert to fraction form
    13,451.96/20,178.04 = 4,686.86/x
  3. Step 3: Cross multiply
    13,451.96x = 20,178.04 × 4,686.86
  4. Step 4: Simplify right side
    13,451.96x = 94,571,648.55
  5. Step 5: Solve for x
    x = 94,571,648.55/13,451.96
  6. Step 6: Final answer
    x = 7,030.32

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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.