Home / 18,319.28-25,273.40-11,953.32

Finding the Fourth Proportional to 18,319.28, 25,273.40 and 11,953.32

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Solution

The fourth proportional to 18,319.28, 25,273.40 and 11,953.32 is: 16,490.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.28 : 25,273.40 = 11,953.32 : x
  2. Step 2: Convert to fraction form
    18,319.28/25,273.40 = 11,953.32/x
  3. Step 3: Cross multiply
    18,319.28x = 25,273.40 × 11,953.32
  4. Step 4: Simplify right side
    18,319.28x = 302,101,037.69
  5. Step 5: Solve for x
    x = 302,101,037.69/18,319.28
  6. Step 6: Final answer
    x = 16,490.88

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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.