Home / 13,708.21-18,914.04-9,457.91

Finding the Fourth Proportional to 13,708.21, 18,914.04 and 9,457.91

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Solution

The fourth proportional to 13,708.21, 18,914.04 and 9,457.91 is: 13,049.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.21 : 18,914.04 = 9,457.91 : x
  2. Step 2: Convert to fraction form
    13,708.21/18,914.04 = 9,457.91/x
  3. Step 3: Cross multiply
    13,708.21x = 18,914.04 × 9,457.91
  4. Step 4: Simplify right side
    13,708.21x = 178,887,288.06
  5. Step 5: Solve for x
    x = 178,887,288.06/13,708.21
  6. Step 6: Final answer
    x = 13,049.65

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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.