Home / 12,775.53-17,630.10-7,110.19

Finding the Fourth Proportional to 12,775.53, 17,630.10 and 7,110.19

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Solution

The fourth proportional to 12,775.53, 17,630.10 and 7,110.19 is: 9,811.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775.53 : 17,630.10 = 7,110.19 : x
  2. Step 2: Convert to fraction form
    12,775.53/17,630.10 = 7,110.19/x
  3. Step 3: Cross multiply
    12,775.53x = 17,630.10 × 7,110.19
  4. Step 4: Simplify right side
    12,775.53x = 125,353,360.72
  5. Step 5: Solve for x
    x = 125,353,360.72/12,775.53
  6. Step 6: Final answer
    x = 9,811.99

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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.