Home / 13,851.30-20,768.67-6,457.41

Finding the Fourth Proportional to 13,851.30, 20,768.67 and 6,457.41

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Solution

The fourth proportional to 13,851.30, 20,768.67 and 6,457.41 is: 9,682.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.30 : 20,768.67 = 6,457.41 : x
  2. Step 2: Convert to fraction form
    13,851.30/20,768.67 = 6,457.41/x
  3. Step 3: Cross multiply
    13,851.30x = 20,768.67 × 6,457.41
  4. Step 4: Simplify right side
    13,851.30x = 134,111,817.34
  5. Step 5: Solve for x
    x = 134,111,817.34/13,851.30
  6. Step 6: Final answer
    x = 9,682.25

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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.