Home / 8,930.10-13,392.63-2,688.42

Finding the Fourth Proportional to 8,930.10, 13,392.63 and 2,688.42

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Solution

The fourth proportional to 8,930.10, 13,392.63 and 2,688.42 is: 4,031.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.10 : 13,392.63 = 2,688.42 : x
  2. Step 2: Convert to fraction form
    8,930.10/13,392.63 = 2,688.42/x
  3. Step 3: Cross multiply
    8,930.10x = 13,392.63 × 2,688.42
  4. Step 4: Simplify right side
    8,930.10x = 36,005,014.34
  5. Step 5: Solve for x
    x = 36,005,014.34/8,930.10
  6. Step 6: Final answer
    x = 4,031.87

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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.