Home / 12,810.44-19,224.42-7,864.99

Finding the Fourth Proportional to 12,810.44, 19,224.42 and 7,864.99

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Solution

The fourth proportional to 12,810.44, 19,224.42 and 7,864.99 is: 11,802.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,810.44 : 19,224.42 = 7,864.99 : x
  2. Step 2: Convert to fraction form
    12,810.44/19,224.42 = 7,864.99/x
  3. Step 3: Cross multiply
    12,810.44x = 19,224.42 × 7,864.99
  4. Step 4: Simplify right side
    12,810.44x = 151,199,871.06
  5. Step 5: Solve for x
    x = 151,199,871.06/12,810.44
  6. Step 6: Final answer
    x = 11,802.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.