Home / 15,462.26-21,328.43-13,663.97

Finding the Fourth Proportional to 15,462.26, 21,328.43 and 13,663.97

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Solution

The fourth proportional to 15,462.26, 21,328.43 and 13,663.97 is: 18,847.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,462.26 : 21,328.43 = 13,663.97 : x
  2. Step 2: Convert to fraction form
    15,462.26/21,328.43 = 13,663.97/x
  3. Step 3: Cross multiply
    15,462.26x = 21,328.43 × 13,663.97
  4. Step 4: Simplify right side
    15,462.26x = 291,430,959.35
  5. Step 5: Solve for x
    x = 291,430,959.35/15,462.26
  6. Step 6: Final answer
    x = 18,847.89

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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.