Home / 9,705.45-14,558.16-3,131.76

Finding the Fourth Proportional to 9,705.45, 14,558.16 and 3,131.76

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Solution

The fourth proportional to 9,705.45, 14,558.16 and 3,131.76 is: 4,697.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,705.45 : 14,558.16 = 3,131.76 : x
  2. Step 2: Convert to fraction form
    9,705.45/14,558.16 = 3,131.76/x
  3. Step 3: Cross multiply
    9,705.45x = 14,558.16 × 3,131.76
  4. Step 4: Simplify right side
    9,705.45x = 45,592,663.16
  5. Step 5: Solve for x
    x = 45,592,663.16/9,705.45
  6. Step 6: Final answer
    x = 4,697.64

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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.