Home / 15,401.83-21,252.93-11,370.80

Finding the Fourth Proportional to 15,401.83, 21,252.93 and 11,370.80

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Solution

The fourth proportional to 15,401.83, 21,252.93 and 11,370.80 is: 15,690.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401.83 : 21,252.93 = 11,370.80 : x
  2. Step 2: Convert to fraction form
    15,401.83/21,252.93 = 11,370.80/x
  3. Step 3: Cross multiply
    15,401.83x = 21,252.93 × 11,370.80
  4. Step 4: Simplify right side
    15,401.83x = 241,662,788.02
  5. Step 5: Solve for x
    x = 241,662,788.02/15,401.83
  6. Step 6: Final answer
    x = 15,690.53

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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.