Home / 13,207.21-18,225.96-7,903.29

Finding the Fourth Proportional to 13,207.21, 18,225.96 and 7,903.29

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Solution

The fourth proportional to 13,207.21, 18,225.96 and 7,903.29 is: 10,906.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.21 : 18,225.96 = 7,903.29 : x
  2. Step 2: Convert to fraction form
    13,207.21/18,225.96 = 7,903.29/x
  3. Step 3: Cross multiply
    13,207.21x = 18,225.96 × 7,903.29
  4. Step 4: Simplify right side
    13,207.21x = 144,045,047.41
  5. Step 5: Solve for x
    x = 144,045,047.41/13,207.21
  6. Step 6: Final answer
    x = 10,906.55

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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.