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Finding the Fourth Proportional to 6,457.56, 8,886.24 and 6,243.72

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Solution

The fourth proportional to 6,457.56, 8,886.24 and 6,243.72 is: 8,591.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,457.56 : 8,886.24 = 6,243.72 : x
  2. Step 2: Convert to fraction form
    6,457.56/8,886.24 = 6,243.72/x
  3. Step 3: Cross multiply
    6,457.56x = 8,886.24 × 6,243.72
  4. Step 4: Simplify right side
    6,457.56x = 55,483,194.41
  5. Step 5: Solve for x
    x = 55,483,194.41/6,457.56
  6. Step 6: Final answer
    x = 8,591.98

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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.