Home / 13,058.32-19,565.69-12,572.40

Finding the Fourth Proportional to 13,058.32, 19,565.69 and 12,572.40

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Solution

The fourth proportional to 13,058.32, 19,565.69 and 12,572.40 is: 18,837.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,058.32 : 19,565.69 = 12,572.40 : x
  2. Step 2: Convert to fraction form
    13,058.32/19,565.69 = 12,572.40/x
  3. Step 3: Cross multiply
    13,058.32x = 19,565.69 × 12,572.40
  4. Step 4: Simplify right side
    13,058.32x = 245,987,591.87
  5. Step 5: Solve for x
    x = 245,987,591.87/13,058.32
  6. Step 6: Final answer
    x = 18,837.61

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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.