Home / 12,880.47-19,295.56-8,877.14

Finding the Fourth Proportional to 12,880.47, 19,295.56 and 8,877.14

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Solution

The fourth proportional to 12,880.47, 19,295.56 and 8,877.14 is: 13,298.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880.47 : 19,295.56 = 8,877.14 : x
  2. Step 2: Convert to fraction form
    12,880.47/19,295.56 = 8,877.14/x
  3. Step 3: Cross multiply
    12,880.47x = 19,295.56 × 8,877.14
  4. Step 4: Simplify right side
    12,880.47x = 171,289,448.68
  5. Step 5: Solve for x
    x = 171,289,448.68/12,880.47
  6. Step 6: Final answer
    x = 13,298.38

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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.