Home / 12,191.51-18,288.14-5,956.71

Finding the Fourth Proportional to 12,191.51, 18,288.14 and 5,956.71

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Solution

The fourth proportional to 12,191.51, 18,288.14 and 5,956.71 is: 8,935.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.51 : 18,288.14 = 5,956.71 : x
  2. Step 2: Convert to fraction form
    12,191.51/18,288.14 = 5,956.71/x
  3. Step 3: Cross multiply
    12,191.51x = 18,288.14 × 5,956.71
  4. Step 4: Simplify right side
    12,191.51x = 108,937,116.64
  5. Step 5: Solve for x
    x = 108,937,116.64/12,191.51
  6. Step 6: Final answer
    x = 8,935.49

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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.