Home / 11,511.64-15,886.14-6,475.82

Finding the Fourth Proportional to 11,511.64, 15,886.14 and 6,475.82

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Solution

The fourth proportional to 11,511.64, 15,886.14 and 6,475.82 is: 8,936.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.64 : 15,886.14 = 6,475.82 : x
  2. Step 2: Convert to fraction form
    11,511.64/15,886.14 = 6,475.82/x
  3. Step 3: Cross multiply
    11,511.64x = 15,886.14 × 6,475.82
  4. Step 4: Simplify right side
    11,511.64x = 102,875,783.13
  5. Step 5: Solve for x
    x = 102,875,783.13/11,511.64
  6. Step 6: Final answer
    x = 8,936.67

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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.