Home / 9,678.12-13,354.98-6,538.56

Finding the Fourth Proportional to 9,678.12, 13,354.98 and 6,538.56

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Solution

The fourth proportional to 9,678.12, 13,354.98 and 6,538.56 is: 9,022.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.12 : 13,354.98 = 6,538.56 : x
  2. Step 2: Convert to fraction form
    9,678.12/13,354.98 = 6,538.56/x
  3. Step 3: Cross multiply
    9,678.12x = 13,354.98 × 6,538.56
  4. Step 4: Simplify right side
    9,678.12x = 87,322,338.03
  5. Step 5: Solve for x
    x = 87,322,338.03/9,678.12
  6. Step 6: Final answer
    x = 9,022.66

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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.