Home / 9,962.55-13,745.79-6,421.50

Finding the Fourth Proportional to 9,962.55, 13,745.79 and 6,421.50

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Solution

The fourth proportional to 9,962.55, 13,745.79 and 6,421.50 is: 8,860.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,962.55 : 13,745.79 = 6,421.50 : x
  2. Step 2: Convert to fraction form
    9,962.55/13,745.79 = 6,421.50/x
  3. Step 3: Cross multiply
    9,962.55x = 13,745.79 × 6,421.50
  4. Step 4: Simplify right side
    9,962.55x = 88,268,590.49
  5. Step 5: Solve for x
    x = 88,268,590.49/9,962.55
  6. Step 6: Final answer
    x = 8,860.04

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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.