Home / 13,370.73-18,452.16-7,402.29

Finding the Fourth Proportional to 13,370.73, 18,452.16 and 7,402.29

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Solution

The fourth proportional to 13,370.73, 18,452.16 and 7,402.29 is: 10,215.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.73 : 18,452.16 = 7,402.29 : x
  2. Step 2: Convert to fraction form
    13,370.73/18,452.16 = 7,402.29/x
  3. Step 3: Cross multiply
    13,370.73x = 18,452.16 × 7,402.29
  4. Step 4: Simplify right side
    13,370.73x = 136,588,239.45
  5. Step 5: Solve for x
    x = 136,588,239.45/13,370.73
  6. Step 6: Final answer
    x = 10,215.47

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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.