Home / 6,909.45-9,538.28-4,075.93

Finding the Fourth Proportional to 6,909.45, 9,538.28 and 4,075.93

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Solution

The fourth proportional to 6,909.45, 9,538.28 and 4,075.93 is: 5,626.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909.45 : 9,538.28 = 4,075.93 : x
  2. Step 2: Convert to fraction form
    6,909.45/9,538.28 = 4,075.93/x
  3. Step 3: Cross multiply
    6,909.45x = 9,538.28 × 4,075.93
  4. Step 4: Simplify right side
    6,909.45x = 38,877,361.60
  5. Step 5: Solve for x
    x = 38,877,361.60/6,909.45
  6. Step 6: Final answer
    x = 5,626.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.