Home / 15,035.84-20,749-8,321.24

Finding the Fourth Proportional to 15,035.84, 20,749 and 8,321.24

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Solution

The fourth proportional to 15,035.84, 20,749 and 8,321.24 is: 11,483.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,035.84 : 20,749 = 8,321.24 : x
  2. Step 2: Convert to fraction form
    15,035.84/20,749 = 8,321.24/x
  3. Step 3: Cross multiply
    15,035.84x = 20,749 × 8,321.24
  4. Step 4: Simplify right side
    15,035.84x = 172,657,408.76
  5. Step 5: Solve for x
    x = 172,657,408.76/15,035.84
  6. Step 6: Final answer
    x = 11,483.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.