Home / 12,365.72-17,064.90-6,776.36

Finding the Fourth Proportional to 12,365.72, 17,064.90 and 6,776.36

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Solution

The fourth proportional to 12,365.72, 17,064.90 and 6,776.36 is: 9,351.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.72 : 17,064.90 = 6,776.36 : x
  2. Step 2: Convert to fraction form
    12,365.72/17,064.90 = 6,776.36/x
  3. Step 3: Cross multiply
    12,365.72x = 17,064.90 × 6,776.36
  4. Step 4: Simplify right side
    12,365.72x = 115,637,905.76
  5. Step 5: Solve for x
    x = 115,637,905.76/12,365.72
  6. Step 6: Final answer
    x = 9,351.49

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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.