Home / 8,457.40-11,671.22-4,680.72

Finding the Fourth Proportional to 8,457.40, 11,671.22 and 4,680.72

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Solution

The fourth proportional to 8,457.40, 11,671.22 and 4,680.72 is: 6,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,457.40 : 11,671.22 = 4,680.72 : x
  2. Step 2: Convert to fraction form
    8,457.40/11,671.22 = 4,680.72/x
  3. Step 3: Cross multiply
    8,457.40x = 11,671.22 × 4,680.72
  4. Step 4: Simplify right side
    8,457.40x = 54,629,712.88
  5. Step 5: Solve for x
    x = 54,629,712.88/8,457.40
  6. Step 6: Final answer
    x = 6,459.40

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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.