Home / 13,327.64-18,391.76-7,359.16

Finding the Fourth Proportional to 13,327.64, 18,391.76 and 7,359.16

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Solution

The fourth proportional to 13,327.64, 18,391.76 and 7,359.16 is: 10,155.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,327.64 : 18,391.76 = 7,359.16 : x
  2. Step 2: Convert to fraction form
    13,327.64/18,391.76 = 7,359.16/x
  3. Step 3: Cross multiply
    13,327.64x = 18,391.76 × 7,359.16
  4. Step 4: Simplify right side
    13,327.64x = 135,347,904.52
  5. Step 5: Solve for x
    x = 135,347,904.52/13,327.64
  6. Step 6: Final answer
    x = 10,155.43

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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.