Home / 15,128.55-22,690.98-5,266.98

Finding the Fourth Proportional to 15,128.55, 22,690.98 and 5,266.98

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Solution

The fourth proportional to 15,128.55, 22,690.98 and 5,266.98 is: 7,899.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128.55 : 22,690.98 = 5,266.98 : x
  2. Step 2: Convert to fraction form
    15,128.55/22,690.98 = 5,266.98/x
  3. Step 3: Cross multiply
    15,128.55x = 22,690.98 × 5,266.98
  4. Step 4: Simplify right side
    15,128.55x = 119,512,937.84
  5. Step 5: Solve for x
    x = 119,512,937.84/15,128.55
  6. Step 6: Final answer
    x = 7,899.83

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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.