Home / 10,117.46-15,177.81-4,274.12

Finding the Fourth Proportional to 10,117.46, 15,177.81 and 4,274.12

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Solution

The fourth proportional to 10,117.46, 15,177.81 and 4,274.12 is: 6,411.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.46 : 15,177.81 = 4,274.12 : x
  2. Step 2: Convert to fraction form
    10,117.46/15,177.81 = 4,274.12/x
  3. Step 3: Cross multiply
    10,117.46x = 15,177.81 × 4,274.12
  4. Step 4: Simplify right side
    10,117.46x = 64,871,705.39
  5. Step 5: Solve for x
    x = 64,871,705.39/10,117.46
  6. Step 6: Final answer
    x = 6,411.86

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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.