Home / 12,750.12-17,590.23-9,400.91

Finding the Fourth Proportional to 12,750.12, 17,590.23 and 9,400.91

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Solution

The fourth proportional to 12,750.12, 17,590.23 and 9,400.91 is: 12,969.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750.12 : 17,590.23 = 9,400.91 : x
  2. Step 2: Convert to fraction form
    12,750.12/17,590.23 = 9,400.91/x
  3. Step 3: Cross multiply
    12,750.12x = 17,590.23 × 9,400.91
  4. Step 4: Simplify right side
    12,750.12x = 165,364,081.16
  5. Step 5: Solve for x
    x = 165,364,081.16/12,750.12
  6. Step 6: Final answer
    x = 12,969.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.