Home / 10,629.10-16,023.26-9,915.49

Finding the Fourth Proportional to 10,629.10, 16,023.26 and 9,915.49

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Solution

The fourth proportional to 10,629.10, 16,023.26 and 9,915.49 is: 14,947.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.10 : 16,023.26 = 9,915.49 : x
  2. Step 2: Convert to fraction form
    10,629.10/16,023.26 = 9,915.49/x
  3. Step 3: Cross multiply
    10,629.10x = 16,023.26 × 9,915.49
  4. Step 4: Simplify right side
    10,629.10x = 158,878,474.30
  5. Step 5: Solve for x
    x = 158,878,474.30/10,629.10
  6. Step 6: Final answer
    x = 14,947.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.