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Finding the Fourth Proportional to 6,457.58, 8,853.42 and 6,340.94

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Solution

The fourth proportional to 6,457.58, 8,853.42 and 6,340.94 is: 8,693.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,457.58 : 8,853.42 = 6,340.94 : x
  2. Step 2: Convert to fraction form
    6,457.58/8,853.42 = 6,340.94/x
  3. Step 3: Cross multiply
    6,457.58x = 8,853.42 × 6,340.94
  4. Step 4: Simplify right side
    6,457.58x = 56,139,005.01
  5. Step 5: Solve for x
    x = 56,139,005.01/6,457.58
  6. Step 6: Final answer
    x = 8,693.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.