Home / 19,410.69-26,780.58-11,340.66

Finding the Fourth Proportional to 19,410.69, 26,780.58 and 11,340.66

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Solution

The fourth proportional to 19,410.69, 26,780.58 and 11,340.66 is: 15,646.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,410.69 : 26,780.58 = 11,340.66 : x
  2. Step 2: Convert to fraction form
    19,410.69/26,780.58 = 11,340.66/x
  3. Step 3: Cross multiply
    19,410.69x = 26,780.58 × 11,340.66
  4. Step 4: Simplify right side
    19,410.69x = 303,709,452.38
  5. Step 5: Solve for x
    x = 303,709,452.38/19,410.69
  6. Step 6: Final answer
    x = 15,646.50

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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.