Home / 10,900.80-16,349.40-4,326.54

Finding the Fourth Proportional to 10,900.80, 16,349.40 and 4,326.54

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Solution

The fourth proportional to 10,900.80, 16,349.40 and 4,326.54 is: 6,489.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,900.80 : 16,349.40 = 4,326.54 : x
  2. Step 2: Convert to fraction form
    10,900.80/16,349.40 = 4,326.54/x
  3. Step 3: Cross multiply
    10,900.80x = 16,349.40 × 4,326.54
  4. Step 4: Simplify right side
    10,900.80x = 70,736,333.08
  5. Step 5: Solve for x
    x = 70,736,333.08/10,900.80
  6. Step 6: Final answer
    x = 6,489.10

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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.