Home / 12,881.52-19,302.84-10,101.60

Finding the Fourth Proportional to 12,881.52, 19,302.84 and 10,101.60

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Solution

The fourth proportional to 12,881.52, 19,302.84 and 10,101.60 is: 15,137.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,881.52 : 19,302.84 = 10,101.60 : x
  2. Step 2: Convert to fraction form
    12,881.52/19,302.84 = 10,101.60/x
  3. Step 3: Cross multiply
    12,881.52x = 19,302.84 × 10,101.60
  4. Step 4: Simplify right side
    12,881.52x = 194,989,568.54
  5. Step 5: Solve for x
    x = 194,989,568.54/12,881.52
  6. Step 6: Final answer
    x = 15,137.16

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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.