Home / 12,866.88-19,300.11-5,075.76

Finding the Fourth Proportional to 12,866.88, 19,300.11 and 5,075.76

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Solution

The fourth proportional to 12,866.88, 19,300.11 and 5,075.76 is: 7,613.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,866.88 : 19,300.11 = 5,075.76 : x
  2. Step 2: Convert to fraction form
    12,866.88/19,300.11 = 5,075.76/x
  3. Step 3: Cross multiply
    12,866.88x = 19,300.11 × 5,075.76
  4. Step 4: Simplify right side
    12,866.88x = 97,962,726.33
  5. Step 5: Solve for x
    x = 97,962,726.33/12,866.88
  6. Step 6: Final answer
    x = 7,613.56

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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.