Home / 11,520.34-15,897.91-6,743.58

Finding the Fourth Proportional to 11,520.34, 15,897.91 and 6,743.58

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Solution

The fourth proportional to 11,520.34, 15,897.91 and 6,743.58 is: 9,306.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.34 : 15,897.91 = 6,743.58 : x
  2. Step 2: Convert to fraction form
    11,520.34/15,897.91 = 6,743.58/x
  3. Step 3: Cross multiply
    11,520.34x = 15,897.91 × 6,743.58
  4. Step 4: Simplify right side
    11,520.34x = 107,208,827.92
  5. Step 5: Solve for x
    x = 107,208,827.92/11,520.34
  6. Step 6: Final answer
    x = 9,306.05

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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.