Home / 12,276.29-18,414.47-4,880.32

Finding the Fourth Proportional to 12,276.29, 18,414.47 and 4,880.32

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Solution

The fourth proportional to 12,276.29, 18,414.47 and 4,880.32 is: 7,320.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.29 : 18,414.47 = 4,880.32 : x
  2. Step 2: Convert to fraction form
    12,276.29/18,414.47 = 4,880.32/x
  3. Step 3: Cross multiply
    12,276.29x = 18,414.47 × 4,880.32
  4. Step 4: Simplify right side
    12,276.29x = 89,868,472.40
  5. Step 5: Solve for x
    x = 89,868,472.40/12,276.29
  6. Step 6: Final answer
    x = 7,320.49

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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.