Home / 6,861.60-9,468.24-4,999.20

Finding the Fourth Proportional to 6,861.60, 9,468.24 and 4,999.20

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Solution

The fourth proportional to 6,861.60, 9,468.24 and 4,999.20 is: 6,898.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.60 : 9,468.24 = 4,999.20 : x
  2. Step 2: Convert to fraction form
    6,861.60/9,468.24 = 4,999.20/x
  3. Step 3: Cross multiply
    6,861.60x = 9,468.24 × 4,999.20
  4. Step 4: Simplify right side
    6,861.60x = 47,333,625.41
  5. Step 5: Solve for x
    x = 47,333,625.41/6,861.60
  6. Step 6: Final answer
    x = 6,898.34

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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.