Home / 10,687.53-14,749.35-6,439.93

Finding the Fourth Proportional to 10,687.53, 14,749.35 and 6,439.93

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Solution

The fourth proportional to 10,687.53, 14,749.35 and 6,439.93 is: 8,887.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,687.53 : 14,749.35 = 6,439.93 : x
  2. Step 2: Convert to fraction form
    10,687.53/14,749.35 = 6,439.93/x
  3. Step 3: Cross multiply
    10,687.53x = 14,749.35 × 6,439.93
  4. Step 4: Simplify right side
    10,687.53x = 94,984,720.52
  5. Step 5: Solve for x
    x = 94,984,720.52/10,687.53
  6. Step 6: Final answer
    x = 8,887.43

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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.