Home / 10,981.40-16,475.16-3,586.30

Finding the Fourth Proportional to 10,981.40, 16,475.16 and 3,586.30

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Solution

The fourth proportional to 10,981.40, 16,475.16 and 3,586.30 is: 5,380.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.40 : 16,475.16 = 3,586.30 : x
  2. Step 2: Convert to fraction form
    10,981.40/16,475.16 = 3,586.30/x
  3. Step 3: Cross multiply
    10,981.40x = 16,475.16 × 3,586.30
  4. Step 4: Simplify right side
    10,981.40x = 59,084,866.31
  5. Step 5: Solve for x
    x = 59,084,866.31/10,981.40
  6. Step 6: Final answer
    x = 5,380.45

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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.