Home / 11,458.91-15,812.54-6,423.08

Finding the Fourth Proportional to 11,458.91, 15,812.54 and 6,423.08

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Solution

The fourth proportional to 11,458.91, 15,812.54 and 6,423.08 is: 8,863.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,458.91 : 15,812.54 = 6,423.08 : x
  2. Step 2: Convert to fraction form
    11,458.91/15,812.54 = 6,423.08/x
  3. Step 3: Cross multiply
    11,458.91x = 15,812.54 × 6,423.08
  4. Step 4: Simplify right side
    11,458.91x = 101,565,177.31
  5. Step 5: Solve for x
    x = 101,565,177.31/11,458.91
  6. Step 6: Final answer
    x = 8,863.42

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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.