Home / 15,962.78-22,028.28-8,889.86

Finding the Fourth Proportional to 15,962.78, 22,028.28 and 8,889.86

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Solution

The fourth proportional to 15,962.78, 22,028.28 and 8,889.86 is: 12,267.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,962.78 : 22,028.28 = 8,889.86 : x
  2. Step 2: Convert to fraction form
    15,962.78/22,028.28 = 8,889.86/x
  3. Step 3: Cross multiply
    15,962.78x = 22,028.28 × 8,889.86
  4. Step 4: Simplify right side
    15,962.78x = 195,828,325.24
  5. Step 5: Solve for x
    x = 195,828,325.24/15,962.78
  6. Step 6: Final answer
    x = 12,267.81

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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.