Home / 6,864.30-9,472.14-4,211.28

Finding the Fourth Proportional to 6,864.30, 9,472.14 and 4,211.28

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Solution

The fourth proportional to 6,864.30, 9,472.14 and 4,211.28 is: 5,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,864.30 : 9,472.14 = 4,211.28 : x
  2. Step 2: Convert to fraction form
    6,864.30/9,472.14 = 4,211.28/x
  3. Step 3: Cross multiply
    6,864.30x = 9,472.14 × 4,211.28
  4. Step 4: Simplify right side
    6,864.30x = 39,889,833.74
  5. Step 5: Solve for x
    x = 39,889,833.74/6,864.30
  6. Step 6: Final answer
    x = 5,811.20

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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.