Home / 10,451.30-15,676.34-7,643.00

Finding the Fourth Proportional to 10,451.30, 15,676.34 and 7,643.00

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Solution

The fourth proportional to 10,451.30, 15,676.34 and 7,643.00 is: 11,464.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,451.30 : 15,676.34 = 7,643.00 : x
  2. Step 2: Convert to fraction form
    10,451.30/15,676.34 = 7,643.00/x
  3. Step 3: Cross multiply
    10,451.30x = 15,676.34 × 7,643.00
  4. Step 4: Simplify right side
    10,451.30x = 119,814,150.02
  5. Step 5: Solve for x
    x = 119,814,150.02/10,451.30
  6. Step 6: Final answer
    x = 11,464.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.