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Finding the Fourth Proportional to 11,272, 15,555.36 and 6,304.96

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Solution

The fourth proportional to 11,272, 15,555.36 and 6,304.96 is: 8,700.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272 : 15,555.36 = 6,304.96 : x
  2. Step 2: Convert to fraction form
    11,272/15,555.36 = 6,304.96/x
  3. Step 3: Cross multiply
    11,272x = 15,555.36 × 6,304.96
  4. Step 4: Simplify right side
    11,272x = 98,075,922.59
  5. Step 5: Solve for x
    x = 98,075,922.59/11,272
  6. Step 6: Final answer
    x = 8,700.84

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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.