Home / 15,886.35-21,922.52-9,173.88

Finding the Fourth Proportional to 15,886.35, 21,922.52 and 9,173.88

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Solution

The fourth proportional to 15,886.35, 21,922.52 and 9,173.88 is: 12,659.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886.35 : 21,922.52 = 9,173.88 : x
  2. Step 2: Convert to fraction form
    15,886.35/21,922.52 = 9,173.88/x
  3. Step 3: Cross multiply
    15,886.35x = 21,922.52 × 9,173.88
  4. Step 4: Simplify right side
    15,886.35x = 201,114,521.91
  5. Step 5: Solve for x
    x = 201,114,521.91/15,886.35
  6. Step 6: Final answer
    x = 12,659.58

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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.