Home / 12,880.69-19,328.32-5,955.19

Finding the Fourth Proportional to 12,880.69, 19,328.32 and 5,955.19

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Solution

The fourth proportional to 12,880.69, 19,328.32 and 5,955.19 is: 8,936.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880.69 : 19,328.32 = 5,955.19 : x
  2. Step 2: Convert to fraction form
    12,880.69/19,328.32 = 5,955.19/x
  3. Step 3: Cross multiply
    12,880.69x = 19,328.32 × 5,955.19
  4. Step 4: Simplify right side
    12,880.69x = 115,103,777.10
  5. Step 5: Solve for x
    x = 115,103,777.10/12,880.69
  6. Step 6: Final answer
    x = 8,936.15

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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.