Home / 11,235.42-15,505.59-6,456.90

Finding the Fourth Proportional to 11,235.42, 15,505.59 and 6,456.90

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Solution

The fourth proportional to 11,235.42, 15,505.59 and 6,456.90 is: 8,910.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,235.42 : 15,505.59 = 6,456.90 : x
  2. Step 2: Convert to fraction form
    11,235.42/15,505.59 = 6,456.90/x
  3. Step 3: Cross multiply
    11,235.42x = 15,505.59 × 6,456.90
  4. Step 4: Simplify right side
    11,235.42x = 100,118,044.07
  5. Step 5: Solve for x
    x = 100,118,044.07/11,235.42
  6. Step 6: Final answer
    x = 8,910.93

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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.