Home / 10,486.72-15,734.40-9,436.96

Finding the Fourth Proportional to 10,486.72, 15,734.40 and 9,436.96

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Solution

The fourth proportional to 10,486.72, 15,734.40 and 9,436.96 is: 14,159.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,486.72 : 15,734.40 = 9,436.96 : x
  2. Step 2: Convert to fraction form
    10,486.72/15,734.40 = 9,436.96/x
  3. Step 3: Cross multiply
    10,486.72x = 15,734.40 × 9,436.96
  4. Step 4: Simplify right side
    10,486.72x = 148,484,903.42
  5. Step 5: Solve for x
    x = 148,484,903.42/10,486.72
  6. Step 6: Final answer
    x = 14,159.33

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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.