Home / 11,156.76-15,394.58-6,440.16

Finding the Fourth Proportional to 11,156.76, 15,394.58 and 6,440.16

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Solution

The fourth proportional to 11,156.76, 15,394.58 and 6,440.16 is: 8,886.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.76 : 15,394.58 = 6,440.16 : x
  2. Step 2: Convert to fraction form
    11,156.76/15,394.58 = 6,440.16/x
  3. Step 3: Cross multiply
    11,156.76x = 15,394.58 × 6,440.16
  4. Step 4: Simplify right side
    11,156.76x = 99,143,558.33
  5. Step 5: Solve for x
    x = 99,143,558.33/11,156.76
  6. Step 6: Final answer
    x = 8,886.41

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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.