Home / 19,173.87-26,482.10-12,789.38

Finding the Fourth Proportional to 19,173.87, 26,482.10 and 12,789.38

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Solution

The fourth proportional to 19,173.87, 26,482.10 and 12,789.38 is: 17,664.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,173.87 : 26,482.10 = 12,789.38 : x
  2. Step 2: Convert to fraction form
    19,173.87/26,482.10 = 12,789.38/x
  3. Step 3: Cross multiply
    19,173.87x = 26,482.10 × 12,789.38
  4. Step 4: Simplify right side
    19,173.87x = 338,689,642.36
  5. Step 5: Solve for x
    x = 338,689,642.36/19,173.87
  6. Step 6: Final answer
    x = 17,664.13

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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.