Home / 10,445.30-15,661.64-4,899.86

Finding the Fourth Proportional to 10,445.30, 15,661.64 and 4,899.86

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Solution

The fourth proportional to 10,445.30, 15,661.64 and 4,899.86 is: 7,346.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.30 : 15,661.64 = 4,899.86 : x
  2. Step 2: Convert to fraction form
    10,445.30/15,661.64 = 4,899.86/x
  3. Step 3: Cross multiply
    10,445.30x = 15,661.64 × 4,899.86
  4. Step 4: Simplify right side
    10,445.30x = 76,739,843.37
  5. Step 5: Solve for x
    x = 76,739,843.37/10,445.30
  6. Step 6: Final answer
    x = 7,346.83

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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.