Home / 13,392.84-18,476.18-9,416.52

Finding the Fourth Proportional to 13,392.84, 18,476.18 and 9,416.52

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Solution

The fourth proportional to 13,392.84, 18,476.18 and 9,416.52 is: 12,990.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.84 : 18,476.18 = 9,416.52 : x
  2. Step 2: Convert to fraction form
    13,392.84/18,476.18 = 9,416.52/x
  3. Step 3: Cross multiply
    13,392.84x = 18,476.18 × 9,416.52
  4. Step 4: Simplify right side
    13,392.84x = 173,981,318.49
  5. Step 5: Solve for x
    x = 173,981,318.49/13,392.84
  6. Step 6: Final answer
    x = 12,990.62

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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.