Home / 10,132.56-14,037.30-9,890.64

Finding the Fourth Proportional to 10,132.56, 14,037.30 and 9,890.64

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Solution

The fourth proportional to 10,132.56, 14,037.30 and 9,890.64 is: 13,702.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,132.56 : 14,037.30 = 9,890.64 : x
  2. Step 2: Convert to fraction form
    10,132.56/14,037.30 = 9,890.64/x
  3. Step 3: Cross multiply
    10,132.56x = 14,037.30 × 9,890.64
  4. Step 4: Simplify right side
    10,132.56x = 138,837,880.87
  5. Step 5: Solve for x
    x = 138,837,880.87/10,132.56
  6. Step 6: Final answer
    x = 13,702.15

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.