Home / 18,950.13-26,131.80-12,574.47

Finding the Fourth Proportional to 18,950.13, 26,131.80 and 12,574.47

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Solution

The fourth proportional to 18,950.13, 26,131.80 and 12,574.47 is: 17,339.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,950.13 : 26,131.80 = 12,574.47 : x
  2. Step 2: Convert to fraction form
    18,950.13/26,131.80 = 12,574.47/x
  3. Step 3: Cross multiply
    18,950.13x = 26,131.80 × 12,574.47
  4. Step 4: Simplify right side
    18,950.13x = 328,593,535.15
  5. Step 5: Solve for x
    x = 328,593,535.15/18,950.13
  6. Step 6: Final answer
    x = 17,339.91

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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.