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Finding the Fourth Proportional to 11,980.68, 17,970.48 and 4,588.62

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Solution

The fourth proportional to 11,980.68, 17,970.48 and 4,588.62 is: 6,882.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,980.68 : 17,970.48 = 4,588.62 : x
  2. Step 2: Convert to fraction form
    11,980.68/17,970.48 = 4,588.62/x
  3. Step 3: Cross multiply
    11,980.68x = 17,970.48 × 4,588.62
  4. Step 4: Simplify right side
    11,980.68x = 82,459,703.94
  5. Step 5: Solve for x
    x = 82,459,703.94/11,980.68
  6. Step 6: Final answer
    x = 6,882.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.