Home / 15,184.42-20,956.32-8,896.79

Finding the Fourth Proportional to 15,184.42, 20,956.32 and 8,896.79

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Solution

The fourth proportional to 15,184.42, 20,956.32 and 8,896.79 is: 12,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,184.42 : 20,956.32 = 8,896.79 : x
  2. Step 2: Convert to fraction form
    15,184.42/20,956.32 = 8,896.79/x
  3. Step 3: Cross multiply
    15,184.42x = 20,956.32 × 8,896.79
  4. Step 4: Simplify right side
    15,184.42x = 186,444,030.60
  5. Step 5: Solve for x
    x = 186,444,030.60/15,184.42
  6. Step 6: Final answer
    x = 12,278.64

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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.