Home / 15,886.43-21,924.30-9,172.34

Finding the Fourth Proportional to 15,886.43, 21,924.30 and 9,172.34

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Solution

The fourth proportional to 15,886.43, 21,924.30 and 9,172.34 is: 12,658.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886.43 : 21,924.30 = 9,172.34 : x
  2. Step 2: Convert to fraction form
    15,886.43/21,924.30 = 9,172.34/x
  3. Step 3: Cross multiply
    15,886.43x = 21,924.30 × 9,172.34
  4. Step 4: Simplify right side
    15,886.43x = 201,097,024.24
  5. Step 5: Solve for x
    x = 201,097,024.24/15,886.43
  6. Step 6: Final answer
    x = 12,658.42

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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.