Home / 12,756.39-19,127.14-8,544.49

Finding the Fourth Proportional to 12,756.39, 19,127.14 and 8,544.49

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Solution

The fourth proportional to 12,756.39, 19,127.14 and 8,544.49 is: 12,811.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756.39 : 19,127.14 = 8,544.49 : x
  2. Step 2: Convert to fraction form
    12,756.39/19,127.14 = 8,544.49/x
  3. Step 3: Cross multiply
    12,756.39x = 19,127.14 × 8,544.49
  4. Step 4: Simplify right side
    12,756.39x = 163,431,587.28
  5. Step 5: Solve for x
    x = 163,431,587.28/12,756.39
  6. Step 6: Final answer
    x = 12,811.75

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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.