Home / 9,808.05-13,538.04-6,453.45

Finding the Fourth Proportional to 9,808.05, 13,538.04 and 6,453.45

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Solution

The fourth proportional to 9,808.05, 13,538.04 and 6,453.45 is: 8,907.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,808.05 : 13,538.04 = 6,453.45 : x
  2. Step 2: Convert to fraction form
    9,808.05/13,538.04 = 6,453.45/x
  3. Step 3: Cross multiply
    9,808.05x = 13,538.04 × 6,453.45
  4. Step 4: Simplify right side
    9,808.05x = 87,367,064.24
  5. Step 5: Solve for x
    x = 87,367,064.24/9,808.05
  6. Step 6: Final answer
    x = 8,907.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.