Home / 12,777.01-17,630.69-7,110.25

Finding the Fourth Proportional to 12,777.01, 17,630.69 and 7,110.25

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Solution

The fourth proportional to 12,777.01, 17,630.69 and 7,110.25 is: 9,811.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,777.01 : 17,630.69 = 7,110.25 : x
  2. Step 2: Convert to fraction form
    12,777.01/17,630.69 = 7,110.25/x
  3. Step 3: Cross multiply
    12,777.01x = 17,630.69 × 7,110.25
  4. Step 4: Simplify right side
    12,777.01x = 125,358,533.94
  5. Step 5: Solve for x
    x = 125,358,533.94/12,777.01
  6. Step 6: Final answer
    x = 9,811.26

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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.