Home / 11,370.39-15,686.89-11,352.87

Finding the Fourth Proportional to 11,370.39, 15,686.89 and 11,352.87

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Solution

The fourth proportional to 11,370.39, 15,686.89 and 11,352.87 is: 15,662.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,370.39 : 15,686.89 = 11,352.87 : x
  2. Step 2: Convert to fraction form
    11,370.39/15,686.89 = 11,352.87/x
  3. Step 3: Cross multiply
    11,370.39x = 15,686.89 × 11,352.87
  4. Step 4: Simplify right side
    11,370.39x = 178,091,222.87
  5. Step 5: Solve for x
    x = 178,091,222.87/11,370.39
  6. Step 6: Final answer
    x = 15,662.72

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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.