Home / 10,856.64-16,250.40-10,113.60

Finding the Fourth Proportional to 10,856.64, 16,250.40 and 10,113.60

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Solution

The fourth proportional to 10,856.64, 16,250.40 and 10,113.60 is: 15,138.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,856.64 : 16,250.40 = 10,113.60 : x
  2. Step 2: Convert to fraction form
    10,856.64/16,250.40 = 10,113.60/x
  3. Step 3: Cross multiply
    10,856.64x = 16,250.40 × 10,113.60
  4. Step 4: Simplify right side
    10,856.64x = 164,350,045.44
  5. Step 5: Solve for x
    x = 164,350,045.44/10,856.64
  6. Step 6: Final answer
    x = 15,138.21

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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.