Home / 12,944.49-19,420.51-5,154.45

Finding the Fourth Proportional to 12,944.49, 19,420.51 and 5,154.45

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Solution

The fourth proportional to 12,944.49, 19,420.51 and 5,154.45 is: 7,733.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,944.49 : 19,420.51 = 5,154.45 : x
  2. Step 2: Convert to fraction form
    12,944.49/19,420.51 = 5,154.45/x
  3. Step 3: Cross multiply
    12,944.49x = 19,420.51 × 5,154.45
  4. Step 4: Simplify right side
    12,944.49x = 100,101,937.78
  5. Step 5: Solve for x
    x = 100,101,937.78/12,944.49
  6. Step 6: Final answer
    x = 7,733.17

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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.