Home / 13,655.88-20,477.34-7,075.44

Finding the Fourth Proportional to 13,655.88, 20,477.34 and 7,075.44

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Solution

The fourth proportional to 13,655.88, 20,477.34 and 7,075.44 is: 10,609.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.88 : 20,477.34 = 7,075.44 : x
  2. Step 2: Convert to fraction form
    13,655.88/20,477.34 = 7,075.44/x
  3. Step 3: Cross multiply
    13,655.88x = 20,477.34 × 7,075.44
  4. Step 4: Simplify right side
    13,655.88x = 144,886,190.53
  5. Step 5: Solve for x
    x = 144,886,190.53/13,655.88
  6. Step 6: Final answer
    x = 10,609.80

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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.