Home / 12,457.40-18,680.22-4,554.43

Finding the Fourth Proportional to 12,457.40, 18,680.22 and 4,554.43

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Solution

The fourth proportional to 12,457.40, 18,680.22 and 4,554.43 is: 6,829.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.40 : 18,680.22 = 4,554.43 : x
  2. Step 2: Convert to fraction form
    12,457.40/18,680.22 = 4,554.43/x
  3. Step 3: Cross multiply
    12,457.40x = 18,680.22 × 4,554.43
  4. Step 4: Simplify right side
    12,457.40x = 85,077,707.67
  5. Step 5: Solve for x
    x = 85,077,707.67/12,457.40
  6. Step 6: Final answer
    x = 6,829.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.