Home / 10,474.10-15,747.60-8,870.30

Finding the Fourth Proportional to 10,474.10, 15,747.60 and 8,870.30

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Solution

The fourth proportional to 10,474.10, 15,747.60 and 8,870.30 is: 13,336.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,474.10 : 15,747.60 = 8,870.30 : x
  2. Step 2: Convert to fraction form
    10,474.10/15,747.60 = 8,870.30/x
  3. Step 3: Cross multiply
    10,474.10x = 15,747.60 × 8,870.30
  4. Step 4: Simplify right side
    10,474.10x = 139,685,936.28
  5. Step 5: Solve for x
    x = 139,685,936.28/10,474.10
  6. Step 6: Final answer
    x = 13,336.32

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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.