Home / 12,439.19-18,607.53-11,344.32

Finding the Fourth Proportional to 12,439.19, 18,607.53 and 11,344.32

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Solution

The fourth proportional to 12,439.19, 18,607.53 and 11,344.32 is: 16,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.19 : 18,607.53 = 11,344.32 : x
  2. Step 2: Convert to fraction form
    12,439.19/18,607.53 = 11,344.32/x
  3. Step 3: Cross multiply
    12,439.19x = 18,607.53 × 11,344.32
  4. Step 4: Simplify right side
    12,439.19x = 211,089,801.97
  5. Step 5: Solve for x
    x = 211,089,801.97/12,439.19
  6. Step 6: Final answer
    x = 16,969.74

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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.