Home / 9,360.30-12,917.21-5,382.69

Finding the Fourth Proportional to 9,360.30, 12,917.21 and 5,382.69

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Solution

The fourth proportional to 9,360.30, 12,917.21 and 5,382.69 is: 7,428.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,360.30 : 12,917.21 = 5,382.69 : x
  2. Step 2: Convert to fraction form
    9,360.30/12,917.21 = 5,382.69/x
  3. Step 3: Cross multiply
    9,360.30x = 12,917.21 × 5,382.69
  4. Step 4: Simplify right side
    9,360.30x = 69,529,337.09
  5. Step 5: Solve for x
    x = 69,529,337.09/9,360.30
  6. Step 6: Final answer
    x = 7,428.11

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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.