Home / 10,459.21-15,688.86-7,353.12

Finding the Fourth Proportional to 10,459.21, 15,688.86 and 7,353.12

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Solution

The fourth proportional to 10,459.21, 15,688.86 and 7,353.12 is: 11,029.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,459.21 : 15,688.86 = 7,353.12 : x
  2. Step 2: Convert to fraction form
    10,459.21/15,688.86 = 7,353.12/x
  3. Step 3: Cross multiply
    10,459.21x = 15,688.86 × 7,353.12
  4. Step 4: Simplify right side
    10,459.21x = 115,362,033.48
  5. Step 5: Solve for x
    x = 115,362,033.48/10,459.21
  6. Step 6: Final answer
    x = 11,029.71

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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.