Home / 13,434.54-18,538.27-8,399.31

Finding the Fourth Proportional to 13,434.54, 18,538.27 and 8,399.31

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Solution

The fourth proportional to 13,434.54, 18,538.27 and 8,399.31 is: 11,590.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.54 : 18,538.27 = 8,399.31 : x
  2. Step 2: Convert to fraction form
    13,434.54/18,538.27 = 8,399.31/x
  3. Step 3: Cross multiply
    13,434.54x = 18,538.27 × 8,399.31
  4. Step 4: Simplify right side
    13,434.54x = 155,708,586.08
  5. Step 5: Solve for x
    x = 155,708,586.08/13,434.54
  6. Step 6: Final answer
    x = 11,590.17

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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.