Home / 12,632.18-18,956.75-7,955.42

Finding the Fourth Proportional to 12,632.18, 18,956.75 and 7,955.42

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Solution

The fourth proportional to 12,632.18, 18,956.75 and 7,955.42 is: 11,938.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,632.18 : 18,956.75 = 7,955.42 : x
  2. Step 2: Convert to fraction form
    12,632.18/18,956.75 = 7,955.42/x
  3. Step 3: Cross multiply
    12,632.18x = 18,956.75 × 7,955.42
  4. Step 4: Simplify right side
    12,632.18x = 150,808,908.09
  5. Step 5: Solve for x
    x = 150,808,908.09/12,632.18
  6. Step 6: Final answer
    x = 11,938.47

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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.