Home / 18,355.80-25,327.37-10,802.45

Finding the Fourth Proportional to 18,355.80, 25,327.37 and 10,802.45

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Solution

The fourth proportional to 18,355.80, 25,327.37 and 10,802.45 is: 14,905.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,355.80 : 25,327.37 = 10,802.45 : x
  2. Step 2: Convert to fraction form
    18,355.80/25,327.37 = 10,802.45/x
  3. Step 3: Cross multiply
    18,355.80x = 25,327.37 × 10,802.45
  4. Step 4: Simplify right side
    18,355.80x = 273,597,648.06
  5. Step 5: Solve for x
    x = 273,597,648.06/18,355.80
  6. Step 6: Final answer
    x = 14,905.24

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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.