Home / 18,313.28-25,272.36-9,929.72

Finding the Fourth Proportional to 18,313.28, 25,272.36 and 9,929.72

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Solution

The fourth proportional to 18,313.28, 25,272.36 and 9,929.72 is: 13,703.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,313.28 : 25,272.36 = 9,929.72 : x
  2. Step 2: Convert to fraction form
    18,313.28/25,272.36 = 9,929.72/x
  3. Step 3: Cross multiply
    18,313.28x = 25,272.36 × 9,929.72
  4. Step 4: Simplify right side
    18,313.28x = 250,947,458.54
  5. Step 5: Solve for x
    x = 250,947,458.54/18,313.28
  6. Step 6: Final answer
    x = 13,703.03

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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.