Home / 13,575.96-20,364.12-5,779.08

Finding the Fourth Proportional to 13,575.96, 20,364.12 and 5,779.08

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Solution

The fourth proportional to 13,575.96, 20,364.12 and 5,779.08 is: 8,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.96 : 20,364.12 = 5,779.08 : x
  2. Step 2: Convert to fraction form
    13,575.96/20,364.12 = 5,779.08/x
  3. Step 3: Cross multiply
    13,575.96x = 20,364.12 × 5,779.08
  4. Step 4: Simplify right side
    13,575.96x = 117,685,878.61
  5. Step 5: Solve for x
    x = 117,685,878.61/13,575.96
  6. Step 6: Final answer
    x = 8,668.70

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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.