Home / 15,890.56-21,924.16-9,175.36

Finding the Fourth Proportional to 15,890.56, 21,924.16 and 9,175.36

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Solution

The fourth proportional to 15,890.56, 21,924.16 and 9,175.36 is: 12,659.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,890.56 : 21,924.16 = 9,175.36 : x
  2. Step 2: Convert to fraction form
    15,890.56/21,924.16 = 9,175.36/x
  3. Step 3: Cross multiply
    15,890.56x = 21,924.16 × 9,175.36
  4. Step 4: Simplify right side
    15,890.56x = 201,162,060.70
  5. Step 5: Solve for x
    x = 201,162,060.70/15,890.56
  6. Step 6: Final answer
    x = 12,659.22

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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.