Home / 11,152.51-15,390.45-6,116.80

Finding the Fourth Proportional to 11,152.51, 15,390.45 and 6,116.80

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Solution

The fourth proportional to 11,152.51, 15,390.45 and 6,116.80 is: 8,441.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,152.51 : 15,390.45 = 6,116.80 : x
  2. Step 2: Convert to fraction form
    11,152.51/15,390.45 = 6,116.80/x
  3. Step 3: Cross multiply
    11,152.51x = 15,390.45 × 6,116.80
  4. Step 4: Simplify right side
    11,152.51x = 94,140,304.56
  5. Step 5: Solve for x
    x = 94,140,304.56/11,152.51
  6. Step 6: Final answer
    x = 8,441.18

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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.