Home / 18,848.52-28,250.64-7,749.72

Finding the Fourth Proportional to 18,848.52, 28,250.64 and 7,749.72

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Solution

The fourth proportional to 18,848.52, 28,250.64 and 7,749.72 is: 11,615.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,848.52 : 28,250.64 = 7,749.72 : x
  2. Step 2: Convert to fraction form
    18,848.52/28,250.64 = 7,749.72/x
  3. Step 3: Cross multiply
    18,848.52x = 28,250.64 × 7,749.72
  4. Step 4: Simplify right side
    18,848.52x = 218,934,549.82
  5. Step 5: Solve for x
    x = 218,934,549.82/18,848.52
  6. Step 6: Final answer
    x = 11,615.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.