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Finding the Fourth Proportional to 11,302.58, 15,592.02 and 9,808.40

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Solution

The fourth proportional to 11,302.58, 15,592.02 and 9,808.40 is: 13,530.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,302.58 : 15,592.02 = 9,808.40 : x
  2. Step 2: Convert to fraction form
    11,302.58/15,592.02 = 9,808.40/x
  3. Step 3: Cross multiply
    11,302.58x = 15,592.02 × 9,808.40
  4. Step 4: Simplify right side
    11,302.58x = 152,932,768.97
  5. Step 5: Solve for x
    x = 152,932,768.97/11,302.58
  6. Step 6: Final answer
    x = 13,530.78

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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.