Home / 15,924.20-23,911.80-12,664.40

Finding the Fourth Proportional to 15,924.20, 23,911.80 and 12,664.40

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Solution

The fourth proportional to 15,924.20, 23,911.80 and 12,664.40 is: 19,016.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,924.20 : 23,911.80 = 12,664.40 : x
  2. Step 2: Convert to fraction form
    15,924.20/23,911.80 = 12,664.40/x
  3. Step 3: Cross multiply
    15,924.20x = 23,911.80 × 12,664.40
  4. Step 4: Simplify right side
    15,924.20x = 302,828,599.92
  5. Step 5: Solve for x
    x = 302,828,599.92/15,924.20
  6. Step 6: Final answer
    x = 19,016.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.