Home / 12,750.51-17,590.77-9,401.25

Finding the Fourth Proportional to 12,750.51, 17,590.77 and 9,401.25

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Solution

The fourth proportional to 12,750.51, 17,590.77 and 9,401.25 is: 12,970.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750.51 : 17,590.77 = 9,401.25 : x
  2. Step 2: Convert to fraction form
    12,750.51/17,590.77 = 9,401.25/x
  3. Step 3: Cross multiply
    12,750.51x = 17,590.77 × 9,401.25
  4. Step 4: Simplify right side
    12,750.51x = 165,375,226.46
  5. Step 5: Solve for x
    x = 165,375,226.46/12,750.51
  6. Step 6: Final answer
    x = 12,970.09

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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.