Home / 18,783.36-25,920.96-10,285.52

Finding the Fourth Proportional to 18,783.36, 25,920.96 and 10,285.52

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Solution

The fourth proportional to 18,783.36, 25,920.96 and 10,285.52 is: 14,193.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.36 : 25,920.96 = 10,285.52 : x
  2. Step 2: Convert to fraction form
    18,783.36/25,920.96 = 10,285.52/x
  3. Step 3: Cross multiply
    18,783.36x = 25,920.96 × 10,285.52
  4. Step 4: Simplify right side
    18,783.36x = 266,610,552.50
  5. Step 5: Solve for x
    x = 266,610,552.50/18,783.36
  6. Step 6: Final answer
    x = 14,193.98

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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.