Home / 19,400.69-29,075.79-8,719.13

Finding the Fourth Proportional to 19,400.69, 29,075.79 and 8,719.13

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Solution

The fourth proportional to 19,400.69, 29,075.79 and 8,719.13 is: 13,067.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,400.69 : 29,075.79 = 8,719.13 : x
  2. Step 2: Convert to fraction form
    19,400.69/29,075.79 = 8,719.13/x
  3. Step 3: Cross multiply
    19,400.69x = 29,075.79 × 8,719.13
  4. Step 4: Simplify right side
    19,400.69x = 253,515,592.86
  5. Step 5: Solve for x
    x = 253,515,592.86/19,400.69
  6. Step 6: Final answer
    x = 13,067.35

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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.