Home / 8,457.47-11,671.89-4,680.79

Finding the Fourth Proportional to 8,457.47, 11,671.89 and 4,680.79

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Solution

The fourth proportional to 8,457.47, 11,671.89 and 4,680.79 is: 6,459.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,457.47 : 11,671.89 = 4,680.79 : x
  2. Step 2: Convert to fraction form
    8,457.47/11,671.89 = 4,680.79/x
  3. Step 3: Cross multiply
    8,457.47x = 11,671.89 × 4,680.79
  4. Step 4: Simplify right side
    8,457.47x = 54,633,665.99
  5. Step 5: Solve for x
    x = 54,633,665.99/8,457.47
  6. Step 6: Final answer
    x = 6,459.81

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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.