Home / 10,123.40-15,185.10-9,734.60

Finding the Fourth Proportional to 10,123.40, 15,185.10 and 9,734.60

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Solution

The fourth proportional to 10,123.40, 15,185.10 and 9,734.60 is: 14,601.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,123.40 : 15,185.10 = 9,734.60 : x
  2. Step 2: Convert to fraction form
    10,123.40/15,185.10 = 9,734.60/x
  3. Step 3: Cross multiply
    10,123.40x = 15,185.10 × 9,734.60
  4. Step 4: Simplify right side
    10,123.40x = 147,820,874.46
  5. Step 5: Solve for x
    x = 147,820,874.46/10,123.40
  6. Step 6: Final answer
    x = 14,601.90

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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.