Home / 13,476.77-20,109.74-12,075.85

Finding the Fourth Proportional to 13,476.77, 20,109.74 and 12,075.85

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Solution

The fourth proportional to 13,476.77, 20,109.74 and 12,075.85 is: 18,019.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,476.77 : 20,109.74 = 12,075.85 : x
  2. Step 2: Convert to fraction form
    13,476.77/20,109.74 = 12,075.85/x
  3. Step 3: Cross multiply
    13,476.77x = 20,109.74 × 12,075.85
  4. Step 4: Simplify right side
    13,476.77x = 242,842,103.23
  5. Step 5: Solve for x
    x = 242,842,103.23/13,476.77
  6. Step 6: Final answer
    x = 18,019.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.