Home / 9,005.89-13,509.51-2,431.98

Finding the Fourth Proportional to 9,005.89, 13,509.51 and 2,431.98

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Solution

The fourth proportional to 9,005.89, 13,509.51 and 2,431.98 is: 3,648.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,005.89 : 13,509.51 = 2,431.98 : x
  2. Step 2: Convert to fraction form
    9,005.89/13,509.51 = 2,431.98/x
  3. Step 3: Cross multiply
    9,005.89x = 13,509.51 × 2,431.98
  4. Step 4: Simplify right side
    9,005.89x = 32,854,790.58
  5. Step 5: Solve for x
    x = 32,854,790.58/9,005.89
  6. Step 6: Final answer
    x = 3,648.15

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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.