Home / 11,139.08-15,371.34-6,102.32

Finding the Fourth Proportional to 11,139.08, 15,371.34 and 6,102.32

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Solution

The fourth proportional to 11,139.08, 15,371.34 and 6,102.32 is: 8,420.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.08 : 15,371.34 = 6,102.32 : x
  2. Step 2: Convert to fraction form
    11,139.08/15,371.34 = 6,102.32/x
  3. Step 3: Cross multiply
    11,139.08x = 15,371.34 × 6,102.32
  4. Step 4: Simplify right side
    11,139.08x = 93,800,835.51
  5. Step 5: Solve for x
    x = 93,800,835.51/11,139.08
  6. Step 6: Final answer
    x = 8,420.88

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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.