Home / 18,950.96-26,126.88-13,278.08

Finding the Fourth Proportional to 18,950.96, 26,126.88 and 13,278.08

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Solution

The fourth proportional to 18,950.96, 26,126.88 and 13,278.08 is: 18,305.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,950.96 : 26,126.88 = 13,278.08 : x
  2. Step 2: Convert to fraction form
    18,950.96/26,126.88 = 13,278.08/x
  3. Step 3: Cross multiply
    18,950.96x = 26,126.88 × 13,278.08
  4. Step 4: Simplify right side
    18,950.96x = 346,914,802.79
  5. Step 5: Solve for x
    x = 346,914,802.79/18,950.96
  6. Step 6: Final answer
    x = 18,305.92

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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.