Home / 10,113.16-15,171.36-4,270.64

Finding the Fourth Proportional to 10,113.16, 15,171.36 and 4,270.64

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Solution

The fourth proportional to 10,113.16, 15,171.36 and 4,270.64 is: 6,406.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,113.16 : 15,171.36 = 4,270.64 : x
  2. Step 2: Convert to fraction form
    10,113.16/15,171.36 = 4,270.64/x
  3. Step 3: Cross multiply
    10,113.16x = 15,171.36 × 4,270.64
  4. Step 4: Simplify right side
    10,113.16x = 64,791,416.87
  5. Step 5: Solve for x
    x = 64,791,416.87/10,113.16
  6. Step 6: Final answer
    x = 6,406.64

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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.