Home / 12,457.07-18,664.83-8,941.80

Finding the Fourth Proportional to 12,457.07, 18,664.83 and 8,941.80

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Solution

The fourth proportional to 12,457.07, 18,664.83 and 8,941.80 is: 13,397.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.07 : 18,664.83 = 8,941.80 : x
  2. Step 2: Convert to fraction form
    12,457.07/18,664.83 = 8,941.80/x
  3. Step 3: Cross multiply
    12,457.07x = 18,664.83 × 8,941.80
  4. Step 4: Simplify right side
    12,457.07x = 166,897,176.89
  5. Step 5: Solve for x
    x = 166,897,176.89/12,457.07
  6. Step 6: Final answer
    x = 13,397.79

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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.