Home / 15,771.21-21,764.75-9,058.18

Finding the Fourth Proportional to 15,771.21, 21,764.75 and 9,058.18

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Solution

The fourth proportional to 15,771.21, 21,764.75 and 9,058.18 is: 12,500.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771.21 : 21,764.75 = 9,058.18 : x
  2. Step 2: Convert to fraction form
    15,771.21/21,764.75 = 9,058.18/x
  3. Step 3: Cross multiply
    15,771.21x = 21,764.75 × 9,058.18
  4. Step 4: Simplify right side
    15,771.21x = 197,149,015.21
  5. Step 5: Solve for x
    x = 197,149,015.21/15,771.21
  6. Step 6: Final answer
    x = 12,500.57

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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.