Home / 13,466.12-18,587.44-9,215.58

Finding the Fourth Proportional to 13,466.12, 18,587.44 and 9,215.58

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Solution

The fourth proportional to 13,466.12, 18,587.44 and 9,215.58 is: 12,720.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,466.12 : 18,587.44 = 9,215.58 : x
  2. Step 2: Convert to fraction form
    13,466.12/18,587.44 = 9,215.58/x
  3. Step 3: Cross multiply
    13,466.12x = 18,587.44 × 9,215.58
  4. Step 4: Simplify right side
    13,466.12x = 171,294,040.32
  5. Step 5: Solve for x
    x = 171,294,040.32/13,466.12
  6. Step 6: Final answer
    x = 12,720.37

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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.