Home / 13,779.45-20,672.16-4,417.29

Finding the Fourth Proportional to 13,779.45, 20,672.16 and 4,417.29

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Solution

The fourth proportional to 13,779.45, 20,672.16 and 4,417.29 is: 6,626.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779.45 : 20,672.16 = 4,417.29 : x
  2. Step 2: Convert to fraction form
    13,779.45/20,672.16 = 4,417.29/x
  3. Step 3: Cross multiply
    13,779.45x = 20,672.16 × 4,417.29
  4. Step 4: Simplify right side
    13,779.45x = 91,314,925.65
  5. Step 5: Solve for x
    x = 91,314,925.65/13,779.45
  6. Step 6: Final answer
    x = 6,626.89

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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.