Home / 15,506.96-21,401.68-8,795.02

Finding the Fourth Proportional to 15,506.96, 21,401.68 and 8,795.02

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Solution

The fourth proportional to 15,506.96, 21,401.68 and 8,795.02 is: 12,138.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,506.96 : 21,401.68 = 8,795.02 : x
  2. Step 2: Convert to fraction form
    15,506.96/21,401.68 = 8,795.02/x
  3. Step 3: Cross multiply
    15,506.96x = 21,401.68 × 8,795.02
  4. Step 4: Simplify right side
    15,506.96x = 188,228,203.63
  5. Step 5: Solve for x
    x = 188,228,203.63/15,506.96
  6. Step 6: Final answer
    x = 12,138.30

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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.