Home / 13,106.11-19,649.88-4,218.69

Finding the Fourth Proportional to 13,106.11, 19,649.88 and 4,218.69

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Solution

The fourth proportional to 13,106.11, 19,649.88 and 4,218.69 is: 6,325.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106.11 : 19,649.88 = 4,218.69 : x
  2. Step 2: Convert to fraction form
    13,106.11/19,649.88 = 4,218.69/x
  3. Step 3: Cross multiply
    13,106.11x = 19,649.88 × 4,218.69
  4. Step 4: Simplify right side
    13,106.11x = 82,896,752.26
  5. Step 5: Solve for x
    x = 82,896,752.26/13,106.11
  6. Step 6: Final answer
    x = 6,325.05

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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.