Home / 11,815.39-17,702.16-10,528.30

Finding the Fourth Proportional to 11,815.39, 17,702.16 and 10,528.30

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Solution

The fourth proportional to 11,815.39, 17,702.16 and 10,528.30 is: 15,773.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.39 : 17,702.16 = 10,528.30 : x
  2. Step 2: Convert to fraction form
    11,815.39/17,702.16 = 10,528.30/x
  3. Step 3: Cross multiply
    11,815.39x = 17,702.16 × 10,528.30
  4. Step 4: Simplify right side
    11,815.39x = 186,373,651.13
  5. Step 5: Solve for x
    x = 186,373,651.13/11,815.39
  6. Step 6: Final answer
    x = 15,773.80

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1.5x scale

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.