Home / 10,088.45-15,134.34-3,424.78

Finding the Fourth Proportional to 10,088.45, 15,134.34 and 3,424.78

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Solution

The fourth proportional to 10,088.45, 15,134.34 and 3,424.78 is: 5,137.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,088.45 : 15,134.34 = 3,424.78 : x
  2. Step 2: Convert to fraction form
    10,088.45/15,134.34 = 3,424.78/x
  3. Step 3: Cross multiply
    10,088.45x = 15,134.34 × 3,424.78
  4. Step 4: Simplify right side
    10,088.45x = 51,831,816.71
  5. Step 5: Solve for x
    x = 51,831,816.71/10,088.45
  6. Step 6: Final answer
    x = 5,137.74

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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.