Home / 17,775.12-26,670.46-8,421.82

Finding the Fourth Proportional to 17,775.12, 26,670.46 and 8,421.82

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Solution

The fourth proportional to 17,775.12, 26,670.46 and 8,421.82 is: 12,636.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,775.12 : 26,670.46 = 8,421.82 : x
  2. Step 2: Convert to fraction form
    17,775.12/26,670.46 = 8,421.82/x
  3. Step 3: Cross multiply
    17,775.12x = 26,670.46 × 8,421.82
  4. Step 4: Simplify right side
    17,775.12x = 224,613,725.71
  5. Step 5: Solve for x
    x = 224,613,725.71/17,775.12
  6. Step 6: Final answer
    x = 12,636.41

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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.