Home / 10,905.12-16,357.34-3,113.93

Finding the Fourth Proportional to 10,905.12, 16,357.34 and 3,113.93

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Solution

The fourth proportional to 10,905.12, 16,357.34 and 3,113.93 is: 4,670.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.12 : 16,357.34 = 3,113.93 : x
  2. Step 2: Convert to fraction form
    10,905.12/16,357.34 = 3,113.93/x
  3. Step 3: Cross multiply
    10,905.12x = 16,357.34 × 3,113.93
  4. Step 4: Simplify right side
    10,905.12x = 50,935,514.39
  5. Step 5: Solve for x
    x = 50,935,514.39/10,905.12
  6. Step 6: Final answer
    x = 4,670.79

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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.