Home / 15,508.70-21,401.52-8,794.94

Finding the Fourth Proportional to 15,508.70, 21,401.52 and 8,794.94

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Solution

The fourth proportional to 15,508.70, 21,401.52 and 8,794.94 is: 12,136.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,508.70 : 21,401.52 = 8,794.94 : x
  2. Step 2: Convert to fraction form
    15,508.70/21,401.52 = 8,794.94/x
  3. Step 3: Cross multiply
    15,508.70x = 21,401.52 × 8,794.94
  4. Step 4: Simplify right side
    15,508.70x = 188,225,084.31
  5. Step 5: Solve for x
    x = 188,225,084.31/15,508.70
  6. Step 6: Final answer
    x = 12,136.74

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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.