Home / 14,779.88-20,391.06-9,477.64

Finding the Fourth Proportional to 14,779.88, 20,391.06 and 9,477.64

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Solution

The fourth proportional to 14,779.88, 20,391.06 and 9,477.64 is: 13,075.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,779.88 : 20,391.06 = 9,477.64 : x
  2. Step 2: Convert to fraction form
    14,779.88/20,391.06 = 9,477.64/x
  3. Step 3: Cross multiply
    14,779.88x = 20,391.06 × 9,477.64
  4. Step 4: Simplify right side
    14,779.88x = 193,259,125.90
  5. Step 5: Solve for x
    x = 193,259,125.90/14,779.88
  6. Step 6: Final answer
    x = 13,075.83

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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.