Home / 12,470.51-18,681.77-7,792.36

Finding the Fourth Proportional to 12,470.51, 18,681.77 and 7,792.36

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Solution

The fourth proportional to 12,470.51, 18,681.77 and 7,792.36 is: 11,673.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.51 : 18,681.77 = 7,792.36 : x
  2. Step 2: Convert to fraction form
    12,470.51/18,681.77 = 7,792.36/x
  3. Step 3: Cross multiply
    12,470.51x = 18,681.77 × 7,792.36
  4. Step 4: Simplify right side
    12,470.51x = 145,575,050.05
  5. Step 5: Solve for x
    x = 145,575,050.05/12,470.51
  6. Step 6: Final answer
    x = 11,673.54

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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.