Home / 9,812.95-13,546.34-6,455.90

Finding the Fourth Proportional to 9,812.95, 13,546.34 and 6,455.90

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Solution

The fourth proportional to 9,812.95, 13,546.34 and 6,455.90 is: 8,912.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,812.95 : 13,546.34 = 6,455.90 : x
  2. Step 2: Convert to fraction form
    9,812.95/13,546.34 = 6,455.90/x
  3. Step 3: Cross multiply
    9,812.95x = 13,546.34 × 6,455.90
  4. Step 4: Simplify right side
    9,812.95x = 87,453,842.20
  5. Step 5: Solve for x
    x = 87,453,842.20/9,812.95
  6. Step 6: Final answer
    x = 8,912.09

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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.