Home / 14,999.20-20,695.36-8,707.84

Finding the Fourth Proportional to 14,999.20, 20,695.36 and 8,707.84

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Solution

The fourth proportional to 14,999.20, 20,695.36 and 8,707.84 is: 12,014.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,999.20 : 20,695.36 = 8,707.84 : x
  2. Step 2: Convert to fraction form
    14,999.20/20,695.36 = 8,707.84/x
  3. Step 3: Cross multiply
    14,999.20x = 20,695.36 × 8,707.84
  4. Step 4: Simplify right side
    14,999.20x = 180,211,883.62
  5. Step 5: Solve for x
    x = 180,211,883.62/14,999.20
  6. Step 6: Final answer
    x = 12,014.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.