Home / 15,966.56-22,029.90-8,891.21

Finding the Fourth Proportional to 15,966.56, 22,029.90 and 8,891.21

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Solution

The fourth proportional to 15,966.56, 22,029.90 and 8,891.21 is: 12,267.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,966.56 : 22,029.90 = 8,891.21 : x
  2. Step 2: Convert to fraction form
    15,966.56/22,029.90 = 8,891.21/x
  3. Step 3: Cross multiply
    15,966.56x = 22,029.90 × 8,891.21
  4. Step 4: Simplify right side
    15,966.56x = 195,872,467.18
  5. Step 5: Solve for x
    x = 195,872,467.18/15,966.56
  6. Step 6: Final answer
    x = 12,267.67

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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.