Home / 15,589.56-21,463.73-12,615.24

Finding the Fourth Proportional to 15,589.56, 21,463.73 and 12,615.24

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Solution

The fourth proportional to 15,589.56, 21,463.73 and 12,615.24 is: 17,368.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,589.56 : 21,463.73 = 12,615.24 : x
  2. Step 2: Convert to fraction form
    15,589.56/21,463.73 = 12,615.24/x
  3. Step 3: Cross multiply
    15,589.56x = 21,463.73 × 12,615.24
  4. Step 4: Simplify right side
    15,589.56x = 270,770,240.93
  5. Step 5: Solve for x
    x = 270,770,240.93/15,589.56
  6. Step 6: Final answer
    x = 17,368.69

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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.