Home / 13,555.14-20,225.88-12,075.27

Finding the Fourth Proportional to 13,555.14, 20,225.88 and 12,075.27

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Solution

The fourth proportional to 13,555.14, 20,225.88 and 12,075.27 is: 18,017.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.14 : 20,225.88 = 12,075.27 : x
  2. Step 2: Convert to fraction form
    13,555.14/20,225.88 = 12,075.27/x
  3. Step 3: Cross multiply
    13,555.14x = 20,225.88 × 12,075.27
  4. Step 4: Simplify right side
    13,555.14x = 244,232,961.99
  5. Step 5: Solve for x
    x = 244,232,961.99/13,555.14
  6. Step 6: Final answer
    x = 18,017.74

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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.