Home / 11,720.34-16,171.36-6,937.87

Finding the Fourth Proportional to 11,720.34, 16,171.36 and 6,937.87

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Solution

The fourth proportional to 11,720.34, 16,171.36 and 6,937.87 is: 9,572.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.34 : 16,171.36 = 6,937.87 : x
  2. Step 2: Convert to fraction form
    11,720.34/16,171.36 = 6,937.87/x
  3. Step 3: Cross multiply
    11,720.34x = 16,171.36 × 6,937.87
  4. Step 4: Simplify right side
    11,720.34x = 112,194,758.71
  5. Step 5: Solve for x
    x = 112,194,758.71/11,720.34
  6. Step 6: Final answer
    x = 9,572.65

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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.