Home / 12,750.12-17,590.25-9,400.89

Finding the Fourth Proportional to 12,750.12, 17,590.25 and 9,400.89

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Solution

The fourth proportional to 12,750.12, 17,590.25 and 9,400.89 is: 12,969.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750.12 : 17,590.25 = 9,400.89 : x
  2. Step 2: Convert to fraction form
    12,750.12/17,590.25 = 9,400.89/x
  3. Step 3: Cross multiply
    12,750.12x = 17,590.25 × 9,400.89
  4. Step 4: Simplify right side
    12,750.12x = 165,363,958.32
  5. Step 5: Solve for x
    x = 165,363,958.32/12,750.12
  6. Step 6: Final answer
    x = 12,969.60

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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.