Home / 15,374.96-21,217.68-9,087.92

Finding the Fourth Proportional to 15,374.96, 21,217.68 and 9,087.92

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Solution

The fourth proportional to 15,374.96, 21,217.68 and 9,087.92 is: 12,541.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,374.96 : 21,217.68 = 9,087.92 : x
  2. Step 2: Convert to fraction form
    15,374.96/21,217.68 = 9,087.92/x
  3. Step 3: Cross multiply
    15,374.96x = 21,217.68 × 9,087.92
  4. Step 4: Simplify right side
    15,374.96x = 192,824,578.43
  5. Step 5: Solve for x
    x = 192,824,578.43/15,374.96
  6. Step 6: Final answer
    x = 12,541.47

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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.