Home / 10,956.12-15,103.50-8,718.96

Finding the Fourth Proportional to 10,956.12, 15,103.50 and 8,718.96

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Solution

The fourth proportional to 10,956.12, 15,103.50 and 8,718.96 is: 12,019.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,956.12 : 15,103.50 = 8,718.96 : x
  2. Step 2: Convert to fraction form
    10,956.12/15,103.50 = 8,718.96/x
  3. Step 3: Cross multiply
    10,956.12x = 15,103.50 × 8,718.96
  4. Step 4: Simplify right side
    10,956.12x = 131,686,812.36
  5. Step 5: Solve for x
    x = 131,686,812.36/10,956.12
  6. Step 6: Final answer
    x = 12,019.48

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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.