Home / 15,036.66-20,749.16-10,181.50

Finding the Fourth Proportional to 15,036.66, 20,749.16 and 10,181.50

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Solution

The fourth proportional to 15,036.66, 20,749.16 and 10,181.50 is: 14,049.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,036.66 : 20,749.16 = 10,181.50 : x
  2. Step 2: Convert to fraction form
    15,036.66/20,749.16 = 10,181.50/x
  3. Step 3: Cross multiply
    15,036.66x = 20,749.16 × 10,181.50
  4. Step 4: Simplify right side
    15,036.66x = 211,257,546.12
  5. Step 5: Solve for x
    x = 211,257,546.12/15,036.66
  6. Step 6: Final answer
    x = 14,049.50

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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.