Home / 15,508.50-21,401.24-9,133.62

Finding the Fourth Proportional to 15,508.50, 21,401.24 and 9,133.62

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Solution

The fourth proportional to 15,508.50, 21,401.24 and 9,133.62 is: 12,604.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,508.50 : 21,401.24 = 9,133.62 : x
  2. Step 2: Convert to fraction form
    15,508.50/21,401.24 = 9,133.62/x
  3. Step 3: Cross multiply
    15,508.50x = 21,401.24 × 9,133.62
  4. Step 4: Simplify right side
    15,508.50x = 195,470,748.02
  5. Step 5: Solve for x
    x = 195,470,748.02/15,508.50
  6. Step 6: Final answer
    x = 12,604.10

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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.