Home / 19,375.64-26,731.51-12,665.14

Finding the Fourth Proportional to 19,375.64, 26,731.51 and 12,665.14

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Solution

The fourth proportional to 19,375.64, 26,731.51 and 12,665.14 is: 17,473.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,375.64 : 26,731.51 = 12,665.14 : x
  2. Step 2: Convert to fraction form
    19,375.64/26,731.51 = 12,665.14/x
  3. Step 3: Cross multiply
    19,375.64x = 26,731.51 × 12,665.14
  4. Step 4: Simplify right side
    19,375.64x = 338,558,316.56
  5. Step 5: Solve for x
    x = 338,558,316.56/19,375.64
  6. Step 6: Final answer
    x = 17,473.40

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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.