Home / 12,515.38-18,779.45-5,941.63

Finding the Fourth Proportional to 12,515.38, 18,779.45 and 5,941.63

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Solution

The fourth proportional to 12,515.38, 18,779.45 and 5,941.63 is: 8,915.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.38 : 18,779.45 = 5,941.63 : x
  2. Step 2: Convert to fraction form
    12,515.38/18,779.45 = 5,941.63/x
  3. Step 3: Cross multiply
    12,515.38x = 18,779.45 × 5,941.63
  4. Step 4: Simplify right side
    12,515.38x = 111,580,543.50
  5. Step 5: Solve for x
    x = 111,580,543.50/12,515.38
  6. Step 6: Final answer
    x = 8,915.47

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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.