Home / 10,694.40-16,030.80-4,855.20

Finding the Fourth Proportional to 10,694.40, 16,030.80 and 4,855.20

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Solution

The fourth proportional to 10,694.40, 16,030.80 and 4,855.20 is: 7,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,694.40 : 16,030.80 = 4,855.20 : x
  2. Step 2: Convert to fraction form
    10,694.40/16,030.80 = 4,855.20/x
  3. Step 3: Cross multiply
    10,694.40x = 16,030.80 × 4,855.20
  4. Step 4: Simplify right side
    10,694.40x = 77,832,740.16
  5. Step 5: Solve for x
    x = 77,832,740.16/10,694.40
  6. Step 6: Final answer
    x = 7,277.90

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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.