Home / 13,365.54-18,439.83-8,652.42

Finding the Fourth Proportional to 13,365.54, 18,439.83 and 8,652.42

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Solution

The fourth proportional to 13,365.54, 18,439.83 and 8,652.42 is: 11,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,365.54 : 18,439.83 = 8,652.42 : x
  2. Step 2: Convert to fraction form
    13,365.54/18,439.83 = 8,652.42/x
  3. Step 3: Cross multiply
    13,365.54x = 18,439.83 × 8,652.42
  4. Step 4: Simplify right side
    13,365.54x = 159,549,153.89
  5. Step 5: Solve for x
    x = 159,549,153.89/13,365.54
  6. Step 6: Final answer
    x = 11,937.35

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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.