Home / 13,374.20-18,457.11-7,406.12

Finding the Fourth Proportional to 13,374.20, 18,457.11 and 7,406.12

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Solution

The fourth proportional to 13,374.20, 18,457.11 and 7,406.12 is: 10,220.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,374.20 : 18,457.11 = 7,406.12 : x
  2. Step 2: Convert to fraction form
    13,374.20/18,457.11 = 7,406.12/x
  3. Step 3: Cross multiply
    13,374.20x = 18,457.11 × 7,406.12
  4. Step 4: Simplify right side
    13,374.20x = 136,695,479.23
  5. Step 5: Solve for x
    x = 136,695,479.23/13,374.20
  6. Step 6: Final answer
    x = 10,220.84

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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.