Home / 10,015.90-15,029.99-5,089.07

Finding the Fourth Proportional to 10,015.90, 15,029.99 and 5,089.07

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Solution

The fourth proportional to 10,015.90, 15,029.99 and 5,089.07 is: 7,636.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.90 : 15,029.99 = 5,089.07 : x
  2. Step 2: Convert to fraction form
    10,015.90/15,029.99 = 5,089.07/x
  3. Step 3: Cross multiply
    10,015.90x = 15,029.99 × 5,089.07
  4. Step 4: Simplify right side
    10,015.90x = 76,488,671.21
  5. Step 5: Solve for x
    x = 76,488,671.21/10,015.90
  6. Step 6: Final answer
    x = 7,636.72

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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.