Home / 19,090.90-28,635.72-8,702.56

Finding the Fourth Proportional to 19,090.90, 28,635.72 and 8,702.56

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Solution

The fourth proportional to 19,090.90, 28,635.72 and 8,702.56 is: 13,053.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,090.90 : 28,635.72 = 8,702.56 : x
  2. Step 2: Convert to fraction form
    19,090.90/28,635.72 = 8,702.56/x
  3. Step 3: Cross multiply
    19,090.90x = 28,635.72 × 8,702.56
  4. Step 4: Simplify right side
    19,090.90x = 249,204,071.44
  5. Step 5: Solve for x
    x = 249,204,071.44/19,090.90
  6. Step 6: Final answer
    x = 13,053.55

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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.