Home / 15,453.18-21,306.60-13,058.82

Finding the Fourth Proportional to 15,453.18, 21,306.60 and 13,058.82

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Solution

The fourth proportional to 15,453.18, 21,306.60 and 13,058.82 is: 18,005.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,453.18 : 21,306.60 = 13,058.82 : x
  2. Step 2: Convert to fraction form
    15,453.18/21,306.60 = 13,058.82/x
  3. Step 3: Cross multiply
    15,453.18x = 21,306.60 × 13,058.82
  4. Step 4: Simplify right side
    15,453.18x = 278,239,054.21
  5. Step 5: Solve for x
    x = 278,239,054.21/15,453.18
  6. Step 6: Final answer
    x = 18,005.29

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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.