Home / 18,365.40-25,348.86-10,412.37

Finding the Fourth Proportional to 18,365.40, 25,348.86 and 10,412.37

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Solution

The fourth proportional to 18,365.40, 25,348.86 and 10,412.37 is: 14,371.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,365.40 : 25,348.86 = 10,412.37 : x
  2. Step 2: Convert to fraction form
    18,365.40/25,348.86 = 10,412.37/x
  3. Step 3: Cross multiply
    18,365.40x = 25,348.86 × 10,412.37
  4. Step 4: Simplify right side
    18,365.40x = 263,941,709.40
  5. Step 5: Solve for x
    x = 263,941,709.40/18,365.40
  6. Step 6: Final answer
    x = 14,371.68

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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.