Home / 11,931.38-17,905.23-4,140.14

Finding the Fourth Proportional to 11,931.38, 17,905.23 and 4,140.14

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Solution

The fourth proportional to 11,931.38, 17,905.23 and 4,140.14 is: 6,213.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.38 : 17,905.23 = 4,140.14 : x
  2. Step 2: Convert to fraction form
    11,931.38/17,905.23 = 4,140.14/x
  3. Step 3: Cross multiply
    11,931.38x = 17,905.23 × 4,140.14
  4. Step 4: Simplify right side
    11,931.38x = 74,130,158.93
  5. Step 5: Solve for x
    x = 74,130,158.93/11,931.38
  6. Step 6: Final answer
    x = 6,213.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.