Home / 13,132.60-18,122.54-7,827.32

Finding the Fourth Proportional to 13,132.60, 18,122.54 and 7,827.32

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Solution

The fourth proportional to 13,132.60, 18,122.54 and 7,827.32 is: 10,801.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.60 : 18,122.54 = 7,827.32 : x
  2. Step 2: Convert to fraction form
    13,132.60/18,122.54 = 7,827.32/x
  3. Step 3: Cross multiply
    13,132.60x = 18,122.54 × 7,827.32
  4. Step 4: Simplify right side
    13,132.60x = 141,850,919.79
  5. Step 5: Solve for x
    x = 141,850,919.79/13,132.60
  6. Step 6: Final answer
    x = 10,801.43

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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.