Home / 12,971.80-19,457.72-4,652.34

Finding the Fourth Proportional to 12,971.80, 19,457.72 and 4,652.34

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Solution

The fourth proportional to 12,971.80, 19,457.72 and 4,652.34 is: 6,978.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971.80 : 19,457.72 = 4,652.34 : x
  2. Step 2: Convert to fraction form
    12,971.80/19,457.72 = 4,652.34/x
  3. Step 3: Cross multiply
    12,971.80x = 19,457.72 × 4,652.34
  4. Step 4: Simplify right side
    12,971.80x = 90,523,850.28
  5. Step 5: Solve for x
    x = 90,523,850.28/12,971.80
  6. Step 6: Final answer
    x = 6,978.51

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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.