Home / 15,426.50-21,288.68-8,352.94

Finding the Fourth Proportional to 15,426.50, 21,288.68 and 8,352.94

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Solution

The fourth proportional to 15,426.50, 21,288.68 and 8,352.94 is: 11,527.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,426.50 : 21,288.68 = 8,352.94 : x
  2. Step 2: Convert to fraction form
    15,426.50/21,288.68 = 8,352.94/x
  3. Step 3: Cross multiply
    15,426.50x = 21,288.68 × 8,352.94
  4. Step 4: Simplify right side
    15,426.50x = 177,823,066.72
  5. Step 5: Solve for x
    x = 177,823,066.72/15,426.50
  6. Step 6: Final answer
    x = 11,527.12

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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.