Home / 10,278.57-14,181.98-7,090.85

Finding the Fourth Proportional to 10,278.57, 14,181.98 and 7,090.85

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Solution

The fourth proportional to 10,278.57, 14,181.98 and 7,090.85 is: 9,783.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.57 : 14,181.98 = 7,090.85 : x
  2. Step 2: Convert to fraction form
    10,278.57/14,181.98 = 7,090.85/x
  3. Step 3: Cross multiply
    10,278.57x = 14,181.98 × 7,090.85
  4. Step 4: Simplify right side
    10,278.57x = 100,562,292.88
  5. Step 5: Solve for x
    x = 100,562,292.88/10,278.57
  6. Step 6: Final answer
    x = 9,783.68

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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.