Home / 19,165.90-28,748.95-6,686.03

Finding the Fourth Proportional to 19,165.90, 28,748.95 and 6,686.03

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Solution

The fourth proportional to 19,165.90, 28,748.95 and 6,686.03 is: 10,029.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,165.90 : 28,748.95 = 6,686.03 : x
  2. Step 2: Convert to fraction form
    19,165.90/28,748.95 = 6,686.03/x
  3. Step 3: Cross multiply
    19,165.90x = 28,748.95 × 6,686.03
  4. Step 4: Simplify right side
    19,165.90x = 192,216,181.71
  5. Step 5: Solve for x
    x = 192,216,181.71/19,165.90
  6. Step 6: Final answer
    x = 10,029.07

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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.