Home / 15,769.93-21,761.72-8,963.07

Finding the Fourth Proportional to 15,769.93, 21,761.72 and 8,963.07

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Solution

The fourth proportional to 15,769.93, 21,761.72 and 8,963.07 is: 12,368.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,769.93 : 21,761.72 = 8,963.07 : x
  2. Step 2: Convert to fraction form
    15,769.93/21,761.72 = 8,963.07/x
  3. Step 3: Cross multiply
    15,769.93x = 21,761.72 × 8,963.07
  4. Step 4: Simplify right side
    15,769.93x = 195,051,842.09
  5. Step 5: Solve for x
    x = 195,051,842.09/15,769.93
  6. Step 6: Final answer
    x = 12,368.59

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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.