Home / 10,349.12-15,526.56-3,428.48

Finding the Fourth Proportional to 10,349.12, 15,526.56 and 3,428.48

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Solution

The fourth proportional to 10,349.12, 15,526.56 and 3,428.48 is: 5,143.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,349.12 : 15,526.56 = 3,428.48 : x
  2. Step 2: Convert to fraction form
    10,349.12/15,526.56 = 3,428.48/x
  3. Step 3: Cross multiply
    10,349.12x = 15,526.56 × 3,428.48
  4. Step 4: Simplify right side
    10,349.12x = 53,232,500.43
  5. Step 5: Solve for x
    x = 53,232,500.43/10,349.12
  6. Step 6: Final answer
    x = 5,143.67

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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.