Home / 13,427.39-18,528.54-7,458.70

Finding the Fourth Proportional to 13,427.39, 18,528.54 and 7,458.70

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Solution

The fourth proportional to 13,427.39, 18,528.54 and 7,458.70 is: 10,292.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.39 : 18,528.54 = 7,458.70 : x
  2. Step 2: Convert to fraction form
    13,427.39/18,528.54 = 7,458.70/x
  3. Step 3: Cross multiply
    13,427.39x = 18,528.54 × 7,458.70
  4. Step 4: Simplify right side
    13,427.39x = 138,198,821.30
  5. Step 5: Solve for x
    x = 138,198,821.30/13,427.39
  6. Step 6: Final answer
    x = 10,292.31

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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.