Home / 13,058.12-19,585.65-4,290.88

Finding the Fourth Proportional to 13,058.12, 19,585.65 and 4,290.88

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Solution

The fourth proportional to 13,058.12, 19,585.65 and 4,290.88 is: 6,435.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,058.12 : 19,585.65 = 4,290.88 : x
  2. Step 2: Convert to fraction form
    13,058.12/19,585.65 = 4,290.88/x
  3. Step 3: Cross multiply
    13,058.12x = 19,585.65 × 4,290.88
  4. Step 4: Simplify right side
    13,058.12x = 84,039,673.87
  5. Step 5: Solve for x
    x = 84,039,673.87/13,058.12
  6. Step 6: Final answer
    x = 6,435.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.