Home / 19,415.16-26,814.96-13,116.60

Finding the Fourth Proportional to 19,415.16, 26,814.96 and 13,116.60

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Solution

The fourth proportional to 19,415.16, 26,814.96 and 13,116.60 is: 18,115.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,415.16 : 26,814.96 = 13,116.60 : x
  2. Step 2: Convert to fraction form
    19,415.16/26,814.96 = 13,116.60/x
  3. Step 3: Cross multiply
    19,415.16x = 26,814.96 × 13,116.60
  4. Step 4: Simplify right side
    19,415.16x = 351,721,104.34
  5. Step 5: Solve for x
    x = 351,721,104.34/19,415.16
  6. Step 6: Final answer
    x = 18,115.80

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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.