Home / 19,487.68-26,891.36-11,930.76

Finding the Fourth Proportional to 19,487.68, 26,891.36 and 11,930.76

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Solution

The fourth proportional to 19,487.68, 26,891.36 and 11,930.76 is: 16,463.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.68 : 26,891.36 = 11,930.76 : x
  2. Step 2: Convert to fraction form
    19,487.68/26,891.36 = 11,930.76/x
  3. Step 3: Cross multiply
    19,487.68x = 26,891.36 × 11,930.76
  4. Step 4: Simplify right side
    19,487.68x = 320,834,362.23
  5. Step 5: Solve for x
    x = 320,834,362.23/19,487.68
  6. Step 6: Final answer
    x = 16,463.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.