Home / 10,971.12-16,457.04-3,180

Finding the Fourth Proportional to 10,971.12, 16,457.04 and 3,180

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Solution

The fourth proportional to 10,971.12, 16,457.04 and 3,180 is: 4,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.12 : 16,457.04 = 3,180 : x
  2. Step 2: Convert to fraction form
    10,971.12/16,457.04 = 3,180/x
  3. Step 3: Cross multiply
    10,971.12x = 16,457.04 × 3,180
  4. Step 4: Simplify right side
    10,971.12x = 52,333,387.20
  5. Step 5: Solve for x
    x = 52,333,387.20/10,971.12
  6. Step 6: Final answer
    x = 4,770.10

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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.