Home / 7,509.30-10,362.78-4,152.12

Finding the Fourth Proportional to 7,509.30, 10,362.78 and 4,152.12

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Solution

The fourth proportional to 7,509.30, 10,362.78 and 4,152.12 is: 5,729.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,509.30 : 10,362.78 = 4,152.12 : x
  2. Step 2: Convert to fraction form
    7,509.30/10,362.78 = 4,152.12/x
  3. Step 3: Cross multiply
    7,509.30x = 10,362.78 × 4,152.12
  4. Step 4: Simplify right side
    7,509.30x = 43,027,506.09
  5. Step 5: Solve for x
    x = 43,027,506.09/7,509.30
  6. Step 6: Final answer
    x = 5,729.90

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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.