Home / 14,742.98-20,365.21-11,779.59

Finding the Fourth Proportional to 14,742.98, 20,365.21 and 11,779.59

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Solution

The fourth proportional to 14,742.98, 20,365.21 and 11,779.59 is: 16,271.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,742.98 : 20,365.21 = 11,779.59 : x
  2. Step 2: Convert to fraction form
    14,742.98/20,365.21 = 11,779.59/x
  3. Step 3: Cross multiply
    14,742.98x = 20,365.21 × 11,779.59
  4. Step 4: Simplify right side
    14,742.98x = 239,893,824.06
  5. Step 5: Solve for x
    x = 239,893,824.06/14,742.98
  6. Step 6: Final answer
    x = 16,271.74

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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.