Home / 9,905.88-13,671-6,377.52

Finding the Fourth Proportional to 9,905.88, 13,671 and 6,377.52

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Solution

The fourth proportional to 9,905.88, 13,671 and 6,377.52 is: 8,801.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,905.88 : 13,671 = 6,377.52 : x
  2. Step 2: Convert to fraction form
    9,905.88/13,671 = 6,377.52/x
  3. Step 3: Cross multiply
    9,905.88x = 13,671 × 6,377.52
  4. Step 4: Simplify right side
    9,905.88x = 87,187,075.92
  5. Step 5: Solve for x
    x = 87,187,075.92/9,905.88
  6. Step 6: Final answer
    x = 8,801.55

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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.