Home / 18,148.02-25,048.35-11,856.78

Finding the Fourth Proportional to 18,148.02, 25,048.35 and 11,856.78

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Solution

The fourth proportional to 18,148.02, 25,048.35 and 11,856.78 is: 16,365.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,148.02 : 25,048.35 = 11,856.78 : x
  2. Step 2: Convert to fraction form
    18,148.02/25,048.35 = 11,856.78/x
  3. Step 3: Cross multiply
    18,148.02x = 25,048.35 × 11,856.78
  4. Step 4: Simplify right side
    18,148.02x = 296,992,775.31
  5. Step 5: Solve for x
    x = 296,992,775.31/18,148.02
  6. Step 6: Final answer
    x = 16,365.02

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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.