Home / 10,156.56-15,256.80-8,599.68

Finding the Fourth Proportional to 10,156.56, 15,256.80 and 8,599.68

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Solution

The fourth proportional to 10,156.56, 15,256.80 and 8,599.68 is: 12,918.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,156.56 : 15,256.80 = 8,599.68 : x
  2. Step 2: Convert to fraction form
    10,156.56/15,256.80 = 8,599.68/x
  3. Step 3: Cross multiply
    10,156.56x = 15,256.80 × 8,599.68
  4. Step 4: Simplify right side
    10,156.56x = 131,203,597.82
  5. Step 5: Solve for x
    x = 131,203,597.82/10,156.56
  6. Step 6: Final answer
    x = 12,918.11

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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.