Home / 10,871.36-15,000.41-10,317.72

Finding the Fourth Proportional to 10,871.36, 15,000.41 and 10,317.72

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Solution

The fourth proportional to 10,871.36, 15,000.41 and 10,317.72 is: 14,236.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871.36 : 15,000.41 = 10,317.72 : x
  2. Step 2: Convert to fraction form
    10,871.36/15,000.41 = 10,317.72/x
  3. Step 3: Cross multiply
    10,871.36x = 15,000.41 × 10,317.72
  4. Step 4: Simplify right side
    10,871.36x = 154,770,056.06
  5. Step 5: Solve for x
    x = 154,770,056.06/10,871.36
  6. Step 6: Final answer
    x = 14,236.50

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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.