Home / 19,242.90-26,555.22-11,178.12

Finding the Fourth Proportional to 19,242.90, 26,555.22 and 11,178.12

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Solution

The fourth proportional to 19,242.90, 26,555.22 and 11,178.12 is: 15,425.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242.90 : 26,555.22 = 11,178.12 : x
  2. Step 2: Convert to fraction form
    19,242.90/26,555.22 = 11,178.12/x
  3. Step 3: Cross multiply
    19,242.90x = 26,555.22 × 11,178.12
  4. Step 4: Simplify right side
    19,242.90x = 296,837,435.79
  5. Step 5: Solve for x
    x = 296,837,435.79/19,242.90
  6. Step 6: Final answer
    x = 15,425.82

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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.