Home / 13,420.35-20,106.23-11,476.35

Finding the Fourth Proportional to 13,420.35, 20,106.23 and 11,476.35

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Solution

The fourth proportional to 13,420.35, 20,106.23 and 11,476.35 is: 17,193.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420.35 : 20,106.23 = 11,476.35 : x
  2. Step 2: Convert to fraction form
    13,420.35/20,106.23 = 11,476.35/x
  3. Step 3: Cross multiply
    13,420.35x = 20,106.23 × 11,476.35
  4. Step 4: Simplify right side
    13,420.35x = 230,746,075.28
  5. Step 5: Solve for x
    x = 230,746,075.28/13,420.35
  6. Step 6: Final answer
    x = 17,193.74

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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.