Home / 9,135.08-12,606.22-5,156.60

Finding the Fourth Proportional to 9,135.08, 12,606.22 and 5,156.60

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Solution

The fourth proportional to 9,135.08, 12,606.22 and 5,156.60 is: 7,116.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.08 : 12,606.22 = 5,156.60 : x
  2. Step 2: Convert to fraction form
    9,135.08/12,606.22 = 5,156.60/x
  3. Step 3: Cross multiply
    9,135.08x = 12,606.22 × 5,156.60
  4. Step 4: Simplify right side
    9,135.08x = 65,005,234.05
  5. Step 5: Solve for x
    x = 65,005,234.05/9,135.08
  6. Step 6: Final answer
    x = 7,116.00

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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.