Home / 10,629.42-15,938.34-6,880.70

Finding the Fourth Proportional to 10,629.42, 15,938.34 and 6,880.70

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Solution

The fourth proportional to 10,629.42, 15,938.34 and 6,880.70 is: 10,317.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.42 : 15,938.34 = 6,880.70 : x
  2. Step 2: Convert to fraction form
    10,629.42/15,938.34 = 6,880.70/x
  3. Step 3: Cross multiply
    10,629.42x = 15,938.34 × 6,880.70
  4. Step 4: Simplify right side
    10,629.42x = 109,666,856.35
  5. Step 5: Solve for x
    x = 109,666,856.35/10,629.42
  6. Step 6: Final answer
    x = 10,317.29

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1.5x scale

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.