Home / 9,364.49-12,921.91-5,386.88

Finding the Fourth Proportional to 9,364.49, 12,921.91 and 5,386.88

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Solution

The fourth proportional to 9,364.49, 12,921.91 and 5,386.88 is: 7,433.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,364.49 : 12,921.91 = 5,386.88 : x
  2. Step 2: Convert to fraction form
    9,364.49/12,921.91 = 5,386.88/x
  3. Step 3: Cross multiply
    9,364.49x = 12,921.91 × 5,386.88
  4. Step 4: Simplify right side
    9,364.49x = 69,608,797.38
  5. Step 5: Solve for x
    x = 69,608,797.38/9,364.49
  6. Step 6: Final answer
    x = 7,433.27

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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.