Home / 11,238.66-15,510.72-6,458.60

Finding the Fourth Proportional to 11,238.66, 15,510.72 and 6,458.60

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Solution

The fourth proportional to 11,238.66, 15,510.72 and 6,458.60 is: 8,913.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.66 : 15,510.72 = 6,458.60 : x
  2. Step 2: Convert to fraction form
    11,238.66/15,510.72 = 6,458.60/x
  3. Step 3: Cross multiply
    11,238.66x = 15,510.72 × 6,458.60
  4. Step 4: Simplify right side
    11,238.66x = 100,177,458.64
  5. Step 5: Solve for x
    x = 100,177,458.64/11,238.66
  6. Step 6: Final answer
    x = 8,913.65

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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.