Home / 15,886.78-21,924.75-9,173.64

Finding the Fourth Proportional to 15,886.78, 21,924.75 and 9,173.64

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Solution

The fourth proportional to 15,886.78, 21,924.75 and 9,173.64 is: 12,660.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886.78 : 21,924.75 = 9,173.64 : x
  2. Step 2: Convert to fraction form
    15,886.78/21,924.75 = 9,173.64/x
  3. Step 3: Cross multiply
    15,886.78x = 21,924.75 × 9,173.64
  4. Step 4: Simplify right side
    15,886.78x = 201,129,763.59
  5. Step 5: Solve for x
    x = 201,129,763.59/15,886.78
  6. Step 6: Final answer
    x = 12,660.20

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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.