Home / 19,457.28-26,840.16-12,744

Finding the Fourth Proportional to 19,457.28, 26,840.16 and 12,744

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Solution

The fourth proportional to 19,457.28, 26,840.16 and 12,744 is: 17,579.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,457.28 : 26,840.16 = 12,744 : x
  2. Step 2: Convert to fraction form
    19,457.28/26,840.16 = 12,744/x
  3. Step 3: Cross multiply
    19,457.28x = 26,840.16 × 12,744
  4. Step 4: Simplify right side
    19,457.28x = 342,050,999.04
  5. Step 5: Solve for x
    x = 342,050,999.04/19,457.28
  6. Step 6: Final answer
    x = 17,579.59

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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.