Home / 15,481.13-21,369.51-9,193.50

Finding the Fourth Proportional to 15,481.13, 21,369.51 and 9,193.50

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Solution

The fourth proportional to 15,481.13, 21,369.51 and 9,193.50 is: 12,690.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,481.13 : 21,369.51 = 9,193.50 : x
  2. Step 2: Convert to fraction form
    15,481.13/21,369.51 = 9,193.50/x
  3. Step 3: Cross multiply
    15,481.13x = 21,369.51 × 9,193.50
  4. Step 4: Simplify right side
    15,481.13x = 196,460,590.19
  5. Step 5: Solve for x
    x = 196,460,590.19/15,481.13
  6. Step 6: Final answer
    x = 12,690.33

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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.