Home / 10,510.47-15,765.68-3,491.03

Finding the Fourth Proportional to 10,510.47, 15,765.68 and 3,491.03

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Solution

The fourth proportional to 10,510.47, 15,765.68 and 3,491.03 is: 5,236.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,510.47 : 15,765.68 = 3,491.03 : x
  2. Step 2: Convert to fraction form
    10,510.47/15,765.68 = 3,491.03/x
  3. Step 3: Cross multiply
    10,510.47x = 15,765.68 × 3,491.03
  4. Step 4: Simplify right side
    10,510.47x = 55,038,365.57
  5. Step 5: Solve for x
    x = 55,038,365.57/10,510.47
  6. Step 6: Final answer
    x = 5,236.53

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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.