Home / 9,503.75-13,115.58-5,312

Finding the Fourth Proportional to 9,503.75, 13,115.58 and 5,312

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Solution

The fourth proportional to 9,503.75, 13,115.58 and 5,312 is: 7,330.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,503.75 : 13,115.58 = 5,312 : x
  2. Step 2: Convert to fraction form
    9,503.75/13,115.58 = 5,312/x
  3. Step 3: Cross multiply
    9,503.75x = 13,115.58 × 5,312
  4. Step 4: Simplify right side
    9,503.75x = 69,669,960.96
  5. Step 5: Solve for x
    x = 69,669,960.96/9,503.75
  6. Step 6: Final answer
    x = 7,330.79

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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.