Home / 16,005.60-22,087.62-8,931.78

Finding the Fourth Proportional to 16,005.60, 22,087.62 and 8,931.78

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Solution

The fourth proportional to 16,005.60, 22,087.62 and 8,931.78 is: 12,325.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,005.60 : 22,087.62 = 8,931.78 : x
  2. Step 2: Convert to fraction form
    16,005.60/22,087.62 = 8,931.78/x
  3. Step 3: Cross multiply
    16,005.60x = 22,087.62 × 8,931.78
  4. Step 4: Simplify right side
    16,005.60x = 197,281,762.56
  5. Step 5: Solve for x
    x = 197,281,762.56/16,005.60
  6. Step 6: Final answer
    x = 12,325.80

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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.