Home / 9,134.70-12,606.30-5,156.16

Finding the Fourth Proportional to 9,134.70, 12,606.30 and 5,156.16

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Solution

The fourth proportional to 9,134.70, 12,606.30 and 5,156.16 is: 7,115.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,134.70 : 12,606.30 = 5,156.16 : x
  2. Step 2: Convert to fraction form
    9,134.70/12,606.30 = 5,156.16/x
  3. Step 3: Cross multiply
    9,134.70x = 12,606.30 × 5,156.16
  4. Step 4: Simplify right side
    9,134.70x = 65,000,099.81
  5. Step 5: Solve for x
    x = 65,000,099.81/9,134.70
  6. Step 6: Final answer
    x = 7,115.73

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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.