Home / 10,915.04-16,366.88-3,892.40

Finding the Fourth Proportional to 10,915.04, 16,366.88 and 3,892.40

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Solution

The fourth proportional to 10,915.04, 16,366.88 and 3,892.40 is: 5,836.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915.04 : 16,366.88 = 3,892.40 : x
  2. Step 2: Convert to fraction form
    10,915.04/16,366.88 = 3,892.40/x
  3. Step 3: Cross multiply
    10,915.04x = 16,366.88 × 3,892.40
  4. Step 4: Simplify right side
    10,915.04x = 63,706,443.71
  5. Step 5: Solve for x
    x = 63,706,443.71/10,915.04
  6. Step 6: Final answer
    x = 5,836.57

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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.