Home / 19,615.13-27,068.77-11,118.86

Finding the Fourth Proportional to 19,615.13, 27,068.77 and 11,118.86

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Solution

The fourth proportional to 19,615.13, 27,068.77 and 11,118.86 is: 15,343.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.13 : 27,068.77 = 11,118.86 : x
  2. Step 2: Convert to fraction form
    19,615.13/27,068.77 = 11,118.86/x
  3. Step 3: Cross multiply
    19,615.13x = 27,068.77 × 11,118.86
  4. Step 4: Simplify right side
    19,615.13x = 300,973,673.06
  5. Step 5: Solve for x
    x = 300,973,673.06/19,615.13
  6. Step 6: Final answer
    x = 15,343.96

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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.