Home / 13,276.78-19,915.17-4,957.45

Finding the Fourth Proportional to 13,276.78, 19,915.17 and 4,957.45

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Solution

The fourth proportional to 13,276.78, 19,915.17 and 4,957.45 is: 7,436.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.78 : 19,915.17 = 4,957.45 : x
  2. Step 2: Convert to fraction form
    13,276.78/19,915.17 = 4,957.45/x
  3. Step 3: Cross multiply
    13,276.78x = 19,915.17 × 4,957.45
  4. Step 4: Simplify right side
    13,276.78x = 98,728,359.94
  5. Step 5: Solve for x
    x = 98,728,359.94/13,276.78
  6. Step 6: Final answer
    x = 7,436.17

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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.