Home / 12,719.88-17,551.62-7,417.08

Finding the Fourth Proportional to 12,719.88, 17,551.62 and 7,417.08

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Solution

The fourth proportional to 12,719.88, 17,551.62 and 7,417.08 is: 10,234.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719.88 : 17,551.62 = 7,417.08 : x
  2. Step 2: Convert to fraction form
    12,719.88/17,551.62 = 7,417.08/x
  3. Step 3: Cross multiply
    12,719.88x = 17,551.62 × 7,417.08
  4. Step 4: Simplify right side
    12,719.88x = 130,181,769.67
  5. Step 5: Solve for x
    x = 130,181,769.67/12,719.88
  6. Step 6: Final answer
    x = 10,234.51

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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.