Home / 18,677.60-25,777.68-10,722.32

Finding the Fourth Proportional to 18,677.60, 25,777.68 and 10,722.32

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Solution

The fourth proportional to 18,677.60, 25,777.68 and 10,722.32 is: 14,798.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.60 : 25,777.68 = 10,722.32 : x
  2. Step 2: Convert to fraction form
    18,677.60/25,777.68 = 10,722.32/x
  3. Step 3: Cross multiply
    18,677.60x = 25,777.68 × 10,722.32
  4. Step 4: Simplify right side
    18,677.60x = 276,396,533.82
  5. Step 5: Solve for x
    x = 276,396,533.82/18,677.60
  6. Step 6: Final answer
    x = 14,798.29

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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.