Home / 13,193.71-18,207.29-7,225.38

Finding the Fourth Proportional to 13,193.71, 18,207.29 and 7,225.38

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Solution

The fourth proportional to 13,193.71, 18,207.29 and 7,225.38 is: 9,971.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,193.71 : 18,207.29 = 7,225.38 : x
  2. Step 2: Convert to fraction form
    13,193.71/18,207.29 = 7,225.38/x
  3. Step 3: Cross multiply
    13,193.71x = 18,207.29 × 7,225.38
  4. Step 4: Simplify right side
    13,193.71x = 131,554,607.08
  5. Step 5: Solve for x
    x = 131,554,607.08/13,193.71
  6. Step 6: Final answer
    x = 9,971.01

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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.