Home / 14,013.20-20,976.60-8,152.40

Finding the Fourth Proportional to 14,013.20, 20,976.60 and 8,152.40

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Solution

The fourth proportional to 14,013.20, 20,976.60 and 8,152.40 is: 12,203.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,013.20 : 20,976.60 = 8,152.40 : x
  2. Step 2: Convert to fraction form
    14,013.20/20,976.60 = 8,152.40/x
  3. Step 3: Cross multiply
    14,013.20x = 20,976.60 × 8,152.40
  4. Step 4: Simplify right side
    14,013.20x = 171,009,633.84
  5. Step 5: Solve for x
    x = 171,009,633.84/14,013.20
  6. Step 6: Final answer
    x = 12,203.47

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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.