Home / 7,629.56-10,528.21-4,645

Finding the Fourth Proportional to 7,629.56, 10,528.21 and 4,645

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Solution

The fourth proportional to 7,629.56, 10,528.21 and 4,645 is: 6,409.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.56 : 10,528.21 = 4,645 : x
  2. Step 2: Convert to fraction form
    7,629.56/10,528.21 = 4,645/x
  3. Step 3: Cross multiply
    7,629.56x = 10,528.21 × 4,645
  4. Step 4: Simplify right side
    7,629.56x = 48,903,535.45
  5. Step 5: Solve for x
    x = 48,903,535.45/7,629.56
  6. Step 6: Final answer
    x = 6,409.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.