Home / 9,357.48-12,912.35-5,379.17

Finding the Fourth Proportional to 9,357.48, 12,912.35 and 5,379.17

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Solution

The fourth proportional to 9,357.48, 12,912.35 and 5,379.17 is: 7,422.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,357.48 : 12,912.35 = 5,379.17 : x
  2. Step 2: Convert to fraction form
    9,357.48/12,912.35 = 5,379.17/x
  3. Step 3: Cross multiply
    9,357.48x = 12,912.35 × 5,379.17
  4. Step 4: Simplify right side
    9,357.48x = 69,457,634.29
  5. Step 5: Solve for x
    x = 69,457,634.29/9,357.48
  6. Step 6: Final answer
    x = 7,422.69

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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.