Home / 15,427.45-21,290.21-9,058.56

Finding the Fourth Proportional to 15,427.45, 21,290.21 and 9,058.56

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Solution

The fourth proportional to 15,427.45, 21,290.21 and 9,058.56 is: 12,501.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,427.45 : 21,290.21 = 9,058.56 : x
  2. Step 2: Convert to fraction form
    15,427.45/21,290.21 = 9,058.56/x
  3. Step 3: Cross multiply
    15,427.45x = 21,290.21 × 9,058.56
  4. Step 4: Simplify right side
    15,427.45x = 192,858,644.70
  5. Step 5: Solve for x
    x = 192,858,644.70/15,427.45
  6. Step 6: Final answer
    x = 12,501.01

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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.