Home / 16,005.12-22,087.08-8,931.54

Finding the Fourth Proportional to 16,005.12, 22,087.08 and 8,931.54

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Solution

The fourth proportional to 16,005.12, 22,087.08 and 8,931.54 is: 12,325.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,005.12 : 22,087.08 = 8,931.54 : x
  2. Step 2: Convert to fraction form
    16,005.12/22,087.08 = 8,931.54/x
  3. Step 3: Cross multiply
    16,005.12x = 22,087.08 × 8,931.54
  4. Step 4: Simplify right side
    16,005.12x = 197,271,672.00
  5. Step 5: Solve for x
    x = 197,271,672.00/16,005.12
  6. Step 6: Final answer
    x = 12,325.54

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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.