Home / 17,780.90-26,613.38-13,099.02

Finding the Fourth Proportional to 17,780.90, 26,613.38 and 13,099.02

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Solution

The fourth proportional to 17,780.90, 26,613.38 and 13,099.02 is: 19,605.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,780.90 : 26,613.38 = 13,099.02 : x
  2. Step 2: Convert to fraction form
    17,780.90/26,613.38 = 13,099.02/x
  3. Step 3: Cross multiply
    17,780.90x = 26,613.38 × 13,099.02
  4. Step 4: Simplify right side
    17,780.90x = 348,609,196.89
  5. Step 5: Solve for x
    x = 348,609,196.89/17,780.90
  6. Step 6: Final answer
    x = 19,605.82

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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.