Home / 12,339.52-18,495.60-9,408.16

Finding the Fourth Proportional to 12,339.52, 18,495.60 and 9,408.16

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Solution

The fourth proportional to 12,339.52, 18,495.60 and 9,408.16 is: 14,101.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.52 : 18,495.60 = 9,408.16 : x
  2. Step 2: Convert to fraction form
    12,339.52/18,495.60 = 9,408.16/x
  3. Step 3: Cross multiply
    12,339.52x = 18,495.60 × 9,408.16
  4. Step 4: Simplify right side
    12,339.52x = 174,009,564.10
  5. Step 5: Solve for x
    x = 174,009,564.10/12,339.52
  6. Step 6: Final answer
    x = 14,101.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.