Home / 15,801.82-21,813.48-9,430.62

Finding the Fourth Proportional to 15,801.82, 21,813.48 and 9,430.62

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Solution

The fourth proportional to 15,801.82, 21,813.48 and 9,430.62 is: 13,018.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,801.82 : 21,813.48 = 9,430.62 : x
  2. Step 2: Convert to fraction form
    15,801.82/21,813.48 = 9,430.62/x
  3. Step 3: Cross multiply
    15,801.82x = 21,813.48 × 9,430.62
  4. Step 4: Simplify right side
    15,801.82x = 205,714,640.76
  5. Step 5: Solve for x
    x = 205,714,640.76/15,801.82
  6. Step 6: Final answer
    x = 13,018.41

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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.