Home / 7,485.75-10,328.40-4,500.99

Finding the Fourth Proportional to 7,485.75, 10,328.40 and 4,500.99

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Solution

The fourth proportional to 7,485.75, 10,328.40 and 4,500.99 is: 6,210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.75 : 10,328.40 = 4,500.99 : x
  2. Step 2: Convert to fraction form
    7,485.75/10,328.40 = 4,500.99/x
  3. Step 3: Cross multiply
    7,485.75x = 10,328.40 × 4,500.99
  4. Step 4: Simplify right side
    7,485.75x = 46,488,025.12
  5. Step 5: Solve for x
    x = 46,488,025.12/7,485.75
  6. Step 6: Final answer
    x = 6,210.20

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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.